Abstract: A low cost, modular plant irrigation system using any convenient container as a reservoir to hold water, including a detachable manifold connected to the reservoir, one or more detachable dripper devices to produce by gravity droplets of water to flow through detachable tubing of selectable sizes and lengths from the manifold to a variable number and types of plant sites, and additional control devices at either or both the dripper devices and the plant sites to individually control selectively and variably the amount of water flowing to each plant site.

Abstract: A plural drainage pumps PH are disposed on the high floor gradation state at the circular shape. A plural drainage pumps PL are disposed on the low floor gradation state at the circular shape. The drainage pump PH disposed on the high floor gradation is installed at the high level. The drainage pump PH is set one having the low pump head and the large capacity in comparison with those of the drainage pump PL disposed on the low floor gradation. An outer shape of an underground pump construction building is formed a circular cone shape spreading toward an upper portion. The discharge water power can be reduced and the construction area for the underground pump construction building can be reduced and further the engineering working amount such as a digging working at the underground can be lessen.

Abstract: A vertical-shaft multi-stage pump has adjustable vanes on its lower stage. A vane angle operating mechanism has an operating shaft extending through a hollow portion of the drive shaft of the upper stage and a link mechanism connected to the operating shaft and the adjustable vane impeller for converting axial motion of the operating shaft into vane angle rotational motion. The pump is particularly suited for use in an underground drainage system.

Abstract: A method of improving ground soil irrigation by employing an additive or amendment in the form of an improved synthetic solution grade calcium sulfate dihydrate composition. This composition is formulated by contacting a calcium compound having a calcium cation with a chemical agent enabling the calcium compound to yield calcium ions upon reaction with the chemical agent and which enables the calcium cation to react with an anion of the chemical agent forming a second calcium compound. The second calcium compound is reacted with a sulfur containing acid, such as sulfuric acid, to thereby form a calcium sulfate dihydrate. The compound has improved suspension characteristics and will remain in suspension for a much longer period of time than a conventional solution grade calcium sulfate dihydrate.

Abstract: The present invention provides a collection tank for use under the floor slab of a building or slab on grade for collecting ground water from the surrounding soil and from weeping tiles. The collection tank comprises a collection tank having an upper tank portion and a lower tank portion, a plurality of perforations in the upper tank portion of the containment tank portion for receiving ground water, a plurality of cut-out ports in the outer wall of the upper tank portion of the collection tank each for receiving an end of a respective weeping tile line, an overflow port for communicating excess water to an overflow line, and a pump for pumping water in the collection tank to a location external of the collection tank. The collection tank also includes one or more collection tank extensions which can be added to the top of the collection tank to ensure that the weeping tile lines, when connected, are positioned at the proper angle to ensure efficient water flow into the collection tank.

Abstract: A roof drain fitting having a box-like bottom part screwed to the supporting roof over a break-through which extends through the roof. A top part having a down pipe and a collar as one unit is slipped over the bottom part. The top part is vertically adjustable to the height of a heat-insulating layer located on the roof. The bottom part and the top part are provided with heat insulation and are secured to each other with adjustable securing devices.

Abstract: A bulkhead for manufacturing underground structures such as earth cavities in a closed construction method, formed of sealing walls arranged as an enclosure and sealing earth masses to be removed against ground water, wherein the sealing walls are formed of a hardened mixture of bentonite-cement injected under pressure into the ground, characterized in that the sealing walls inserted into fine sand or silts are arranged in the form of a roof and are formed as a substantially elastically deformable bulkhead envelope by adding filler to the mixture of bentonite-cement. Preferably, the bulkhead sealing walls of the bulkhead envelope extend from a central ridge line on the earth surface or below it downwardly in an obliquely diverging direction into water-impermeable soil. The bulkhead can be made airtight so that a vacuum can be applied to the earth mass enclosed by the bulkhead envelope.

Abstract: A water control and diversion headgate for use in irrigation systems, simplifying the headgate construction, easing its operation and improving its overall efficiency. This headgate includes a corrugated pipe, sometimes provided with an internal liner and having a beveled slot which extends slightly less than halfway through its diameter. A solid, flat elongated water-blocking gate, usually somewhat flexible, is positioned within the slot for vertical movement and for fully or partially blocking water flow through the pipe. The gate has a tapered lower edge and is adapted to make a sealing line contact with an adjacent pipe corrugation for sealing efficiency.

Abstract: Large leaching chambers having hollow ribs are formed by gas assisted injection molding. The ribs have stepped cross sections with hollow bases and narrower solid upper parts. When the chamber wall is corrugated, as characterizes a typical arch shape cross section leaching conduit, hollow ribs on opposing sides of the wall are positioned to connect to each by means of holes in the undulating walls. Hollow ribs are narrowed along their length and where they interconnect, alleviating problems distortion and shrinkage problems. And, the chamber wall which surrounds the injection molding sprue is thinner than the typical wall, to avoid hollowing there.

Abstract: An elasticized geosynthetic panel, geofoam composition and method operable for permitting controlled deformation of earth materials adjacent a rigid earth retaining structure or the like. The panel includes a drainage component. a water and gas membrane and a compressible geofoam member. The compressible geofoam member is elasticized and exhibits a cross-anisotrophic characteristic which has enhanced elasticity in a direction normal to the geosynthetic panel.

Abstract: A drip irrigation system employs a low-pressure head of about 11/2 to 2 psi preferably by storage of water in a tank providing a column head of about 54 in. Header pipes extending into the field from the column are formed with holes at intervals. For each hole there is a flexible fitting having an end which fits into the header hole with a water-tight fit and has a short nipple at its opposite end. Then plastic tubing (e.g. about 0.001 to 0.002 thick high density polyethylene of approximately 11/4 inch diameter when expanded and formed with holes of about 0.001 to 0.00025 inch diameter at about 24 to 28 holes per foot) is taped to the nipple.

Abstract: An earth drain comprising a core consisting of an elongated flexible web having on at least one surface thereof, and preferably on both surfaces, an array of discreet projections spaced transversely across the width of the web, and longitudinally in the lengthwise orientation of the web. The array of projections is interrupted by a plurality of elongated projection-free zones extending in the longitudinal direction of the web, and spaced transversely across the width of the web. A filter of sheet-like water permeable material encases the core, and is adapted to be maintained in spaced relationship to the web by the free ends of the projections thereon.

Abstract: Drip tape for below or above ground irrigation includes a sheet of material formed into a tube by overlapping opposite side edges of the sheet and bonding the side edges along a longitudinal seam thereby forming a primary flow path. A strip of transparent material is bonded to an interior surface of the sheet prior to seaming, at a location remote from the longitudinal seam so as to define, in combination with the tape wall, a plurality of secondary flow paths within the primary flow path. Each secondary flow path includes an inlet region, a turbulence inducing region and an outlet region; the inlet region including a plurality of inlets in the second strip connecting the primary flow path to the secondary flow path upstream of the turbulence inducing region; the outlet region including an outlet in the tube connecting the secondary flow path to atmosphere downstream of the turbulence inducing region.

Abstract: A flood water control system for reducing flooding formed in conjunction with multi-lane highways separated by medians wherein large holding basins are formed in the medians and flood water flowing into low land flows through directional ditches to the multi-lane highways and is thereafter transported through culverts to the holding basins. The culverts can be selectively opened and closed to control the collection of flood water in the holding basins.

Abstract: An automated furrow irrigation control method and system involves the initiation of an irrigation flow into an upstream end of a furrow at an initial water discharge rate; continuously or periodically sensing the progress of water flow along the furrow; continuously or periodically increasing the water discharge rate in response to the sensed progress of the water flow so as to ensure a substantially continuous flow in the furrow at a flow rate which lies substantially between .+-.30% of a constant value; sensing the arrival of the water flow at a downstream end of the furrow; reducing the water discharge rate in response to the sensed arrival of the water flow at the downstream end of the furrow; sensing the percolation of the water flow at the downstream end down to a predetermined depth; and terminating the irrigation flow in response to the sensed percolation.

Abstract: An elongate drainage channel capable of receiving runoff from an athletic surface is provided which includes a bottom wall and a pair of sidewalls extending upwardly from the opposed sides of the bottom wall. The drainage channel also includes a projection extending transversely outwardly from the exterior of at least one of the sidewalls and spaced at a predetermined distance below the open top for defining a height to which a subsurface layer is applied adjacent to the drainage channel. The projection is also fracturable from the sidewall so as to act as a mechanical fuse to prevent vibratory or tamping machinery from damaging the drainage channel. In another embodiment of the invention, an elongate channel section is provided which has a bottom surface which includes end portions which are shaped as generally planar reference surfaces.

Abstract: An elongate grate capable of securing an edge portion of an artificial turf surface within a drainage channel is provided. The grate includes an elongate central portion defining a plurality of openings to permit runoff from the artificial turf surface to flow into the drainage channel. Connected to at least one exterior edge of the central portion is a downwardly extending wall portion being interior of the exterior edge for applying a downwardly directed engagement force to the edge portion of the artificial turf surface. According to another embodiment of the grate, an elongate slot is integrally defined in the central portion having a width such the edge portion of the artificial turf can be frictionally engaged therein. According to yet another embodiment, a grate is provided with a central portion positioned between opposed edge portions and defines a plurality of openings therein such that an impervious athletic surface can be formed over each of the edge portions.

Abstract: A form for construction of a catch basin including a water insert form that has a front insert wall, a rear insert wall, a pair of side insert walls and a concave bottom edge. The front insert wall and the rear insert wall each have knockouts along the bottom. The mortar insert form is positioned over an inlet pipe and an outlet pipe of a catch basin for bridges. Also, included are a pair of thumb screws that are capable of being positioned through one of the side walls of the mortar insert form. Included is a height mortar bridge form that has a front bridge wall, a rear bridge wall, and a pair of side bridge walls. The front bridge wall and the rear bridge wall each have a concave bottom. The front bridge wall and the rear bridge wall each have an inner wall that sloops downwardly from a top edge to form a cross rib. Lastly, the height mortar bridge form is locked within the mortar insert form a pair of thumb screws. This provides a form for mortar to be poured into.

Abstract: A clamping mechanism for removably attaching a fabric to a foraminous element having generally a plank shape. A form-drain is a hollow, foraminous, plank-shaped conduit. The clamp of the invention is a semi-rigid strip of material such as polyvinylchloride. From the strip depend orthogonal projections which form, in a first model, a U-form of shallow definition; this is the "cap" model and is used to capture a fabric between it and the top surface of the form-drain. An alternate embodiment realizes the same strip with depending orthogonal studs (as projections). Projections of both embodiments include mechanisms to impede retrograde motion of the clamp once it is installed on the form-drain. In anticipation of changes to the form-drain, alternate models of the invention have been presented.

Abstract: An underground water channel is provided in an underground of a large depth, and rain water and the like flow into this underground channel from flood control channels, conduits and rivers through vertical shafts. A pump well of a pump station is connected to a downstream end of the underground channel, and water flowing into the pump well is discharged by a pump to a discharge tank. The pump is disposed generally at a medium water level of the underground channel, and a lowest water level L.W.L enabling draining is the medium water level of the underground channel. In an open channel flow operation of an open channel-closed channel mixed flow operation, water level of the underground channel is maintained at the lowest water level L.W.L, so that the underground channel is in an open channel condition.

Abstract: A method and apparatus for controlling water seepage at an interface between a wall supported by a footing and a floor with a side surface adjacent the wall and a bottom surface adjacent the footing using a pliable panel disposed between the wall and the side surface of the floor and between the footing and the bottom surface of the floor to substantially isolate the floor from the wall and the footing. The panel including a water flow path between the wall and the side surface of the floor and between the footing and the bottom surface of the floor, wherein the pliable panel permits expansion and contraction of the floor, walls and footing.

Abstract: A structure having at least one layer (3.1), for example three layers (3.1, 3.2, 3.3), of a number of juxtaposed sheet blocks, in which the sheets are shaped so as to define between themselves a series of vertical cells for water storage, and a series of horizontal cells in the height of the blocks for water drainage. The horizontal cells communicate with the vertical cells. The structure is light, inexpensive, easy to install without requiring heavy handling means, and is especially useful in underground water reservoirs.

Abstract: A treatment system for aerating, cooling and heating or draining a site such as a golf course green or a playing field. A mobile blower can be connected and disconnected with an underground duct network situated under the site through a suitable valving arrangement so that one blower can be used in servicing a number of sites.

Abstract: A method for deploying a work object, connected to a control system by an elongated, substantially flexible conduit, relative to a target, the method including the steps of substantially burying the work object in the earth in a predetermined position relative to the target with the conduit extending upwardly from the work object to the surface of the earth; extending the conduit to the control system substantially across the surface of the earth; and covering the portion of the conduit extending across the surface of the earth to conceal its presence. An apparatus for deploying a work object in an operational position, the apparatus having a housing adapted to be positioned beneath the operational position; a member mounted on the housing and adapted to mount the work object for movement to and from the operational position; and a system connected to the housing for moving the work object to and from the operational position.

Abstract: A plurality of drainage pumps are disposed on a high floor gradation state in a circular arrangement. A plurality of drainage pumps are disposed on a low floor gradation state in a circular arrangement. The drainage pumps disposed on the high floor gradation are installed at a high level, with the drainage pumps having a low pump head and a large capacity in comparison with the drainage pumps disposed at the low floor gradation. An outer shape of an underground pump construction building is in the form of a circular cone shape spreading toward an upper portion of the underground pump construction building. The amount of power for discharging the drainage can be reduced and the construction area for the underground pump construction building can be reduced thereby minimizing the necessary requirement for installation of the underground pump construction.

Abstract: Irrigation apparatus includes a feeder line connectible to a source of pressurized water, and an outer line of larger diameter than, and enclosing, the feeder line to define an annular water chamber between them. The outer line includes a plurality of irrigation devices spaced along its length communicating with the water chamber. A plurality of pulsator devices are spaced along the length of the feeder line and connect the feeder line to the water chamber.

Abstract: A leaching field is prepared by fitting together segments of PVC pipe in the manifold configuration that defines a plurality of outlets, each outlet having a unique in-drain configuration with an internal core and external non-woven geotextile fabric envelope. The method calls for supporting these relatively flexible in-drains with a template while space between the in-drains is filled with sand or the like. In a further embodiment each of the in-drains is fitted with a stand pipe that is useful to backflush the in-drains periodically.

Abstract: A system is provided for controlling the moisture content of a planted surface. The system includes a plurality of drain conduits located beneath the planted surface for collecting liquid from the planted surface. The system also includes a sealed collection tank coupled to the plurality of drain conduits. The collection tank is located beneath the planted surface to collect liquid passing through the plurality of drain conduits. The system also includes a vacuum pump coupled to the collection tank for removing air from the collection tank to provide a suction force in the collection tank and in the plurality of drain conduits to draw liquid from the planted surface through the plurality of drain conduits and into the collection tank. An elevated air tank is coupled between the vacuum pump and the collection tank. The elevated air tank is located at a remote location spaced apart from the collection tank.

Abstract: A method of improving ground soil irrigation by employing an additive or amendment in the form of an improved synthetic solution grade calcium sulfate dihydrate composition. This composition is formulated by contacting a calcium compound having a calcium cation with a chemical agent enabling the calcium compound to yield calcium ions upon reaction with the chemical agent and which enables the calcium cation to react with an anion of the chemical agent forming a second calcium compound. The second calcium compound is reacted with a sulfur containing acid, such as sulfuric acid, to thereby form a calcium sulfate dihydrate. The compound has improved suspension characteristics and will remain in suspension for a much longer period of time than a conventional solution grade calcium sulfate dihydrate.

Abstract: A flexible pipe diffuser receives dewatering discharge and maintains water quality standards at harbors, lakes and ponds. The diffuser is designed for long-term construction use. It is rugged enough to work under construction conditions but simple enough to be easily assembled and deployed. The flexible pipe diffuser is a fabric tube with minimum 10 feet diameter suspended vertically in the water from a floating platform. Turbid discharge enters the top of the tube and is conducted to the harbor bottom, where sediment is allowed to separate and settle. Floatable materials such as oil and grease separate from dewatering discharge and collect at water surface in the flexible pipe diffuser. The collected floatable materials are removed for disposal by skimmers. The flexible pipe diffuser tube is made of sailcloth and vinyl sewn together. The flexible pipe diffuser has a float platform to which the tube is attached. The float platform is attachable to a pier.

Abstract: A filter device made from netting mounted on the end of a storm sewer to receive the flow of water and debris carried by same and allow the water to flow on through while retaining the debris. The filter has multiple parts joined by quick release fasteners. The same fasteners connect the device to the storm sewer outlet.

Abstract: The invention is a method and apparatus for edging landscapes and hardscapes that also allows for drainage of water and other liquids from the edged areas. A strip is provided having a number of regularly spaced openings through which liquids can drain. The strip is inserted into the ground about the edge of landscapes and hardscapes. The strip is positioned with the openings at desired levels above and/or below the surface of the adjacent landscape/hardscape area appropriate to allow drainage of accumulated water. A variety of opening shapes and arrangements of openings may be utilized to facilitate drainage.

Abstract: Apparatus for decontamination of a liquid which includes an outer envelope, apparatus for directing a liquid into the outer envelope, and apparatus for directing a liquid out of the envelope. The apparatus for directing the liquid out of the envelope includes an axial section of perforate duct and apparatus for absorbing contaminants disposed around the axial section of perforate duct, the apparatus for absorbing and the axial section of perforate duct are disposed within the outer envelope. In some forms of the invention the apparatus for absorbing contaminants is a particulate material which may be disposed within a sleeve shaped member. The apparatus for absorbing may include a central perforate tube disposed in generally concentric relationship to the sleeve shaped member and the central perforate tube may be in fluid communication with the exterior of the outer envelope. In many embodiments the outer envelope is substantially fluid impervious and may be an elongated body.

Abstract: An apparatus and method for preparing a drain from a trench in a single pass by lining the trench with a filter fabric, a first layer of bulk material, a drain pipe and a second layer of bulk material. A guide chute guides the filter fabric into the trench, the filter fabric being positioned in the trench adjacent the bottom and one side wall thereof. A pipe chute, having an exit portion, lays the drain pipe on the first layer of bulk material in the trench. A hopper is provided with the bulk material therein and has a first opening through which the first layer of bulk material is poured into the trench onto the filter fabric, and has a second opening through which the second layer of bulk material is poured into the trench onto the drainage pipe. A slidable gate may be provided to control the flow of bulk material through the second opening to permit the installation of lateral drains.

Abstract: The present invention concerns a drainage network, which is characterized by the fact that said drainage network is a network for ground constructions equipped with drainage belts with which a three-dimensional drainage network system for diverting water can be formed in the ground, thereby providing rain water and underground water accumulated in the ground a means to be drained for the purposes of alleviating hydraulic pressure exerted on the ground, increasing ground stability and preventing earth movements from occurring in the construction site.

Abstract: A slotted drain includes a drain pipe having an elongated narrow slot extending lengthwise along its top surface. A lower grate is rigidly secured to the elongated slot and is formed by a pair of bearing plates connected to one another by a series of spacer plates and connected to the edges of the elongated slot. The lower grate is connected to an upper grate initially in an adjustable manner such that the height and angle of the upper grate may be adjusted with respect to the lower grate and the drain pipe. The height of the upper grate with respect to the drain pipe is dependent upon the intended depth at which the drain pipe will be situated and the angle of the upper grate may, for example, correspond to the drainage slope at which the drain pipe will be set. Once the upper grate has been adjusted to the desired height and angle, the upper grate is rigidly secured to the lower grate.

Abstract: A water-saving irrigation device of the type that is utilized for the irrigation of vegetation and trees in arid desert areas is provided. The irrigation device includes a water inlet port, a water outlet port and a water storage container. The water inlet port is positioned at the upper section of the water storage container, attached to the cover and the water input nozzle of the water storage container. The water outlet port is positioned at either the lower section or the lateral section of the water storage container. The water outlet port has a perforated cover plate mounted against a sediment trap layer disposed within a water output nozzle. The sediment layer can be constructed from fine fabric or interwoven fibers. An air volume adjustment device is installed on the cover plate of water inlet port to control the amount of air admitted into the water storage container.

Abstract: A method of retrofitting an underground water drainage sump system to below a floor slab for protecting the floor slab includes the steps of forming a sump hole below a floor slab of a building, drilling into and removing soil from below the floor slab so as to form a plurality of lateral passageways extending from a central location relative to an outer perimeter of the floor slab, extending the lateral passageways outwardly at two different levels and lengths and alternating therebetween to and beyond a footer at the outer perimeter of the floor slab, inserting a plurality of perforated collection pipes into the lateral passageways, placing a perforated drum into the sump hole such that inner ends of the perforated collection pipes are adjacent to the perforated drum, filling the sump hole around at least the lower portion of the perforated drum with drainage stones, placing a sump pump into the perforated drum, connecting the sump pump to a discharge pipe for transporting the drainage water from the perfor

Abstract: An arrangement for the separation of pollutants and, as the case may be, bulky solids, i.e. coarse matter, in separating structures, such as rainwater relief structures for the protection of bodies of water. The rainwater or combined water exceeding a critical combined water outflow is diverted to another part of a sewer system or to a channel leading to a receiving body of water by flowing over a relief weir, and being freed of coarse matter by means of an interceptor prior to its overflow into the channel. The interceptor (20) is fashioned of a plurality of bar elements (21) arranged with preferably equidistant mutual spacing on the overflow side of the relief weir (20), and a separate pollutant channel (22) receives the coarse matter retained by the interceptor (20).

Abstract: Prefabricated concrete pipe encasements are disclosed for stabilizing underground conduit systems from movement caused by flotation, back filling or settling. In one embodiment, a sewer chimney includes a plastic riser connected between a tee-fitting in a sewer main and a cap block at a branch service line. At least one pipe encasement and a prefabricated concrete base encircles the riser for maintaining alignment with the tee-fitting. In other embodiments the pipe encasement encircles a generally horizontal pipe line.

Abstract: A play area surface treatment is provided comprising, from top to bottom: a layer of polymeric mesh, a layer of landscape separator, six inches of ground rubber buffing, a second layer of landscape separator, and six inches of pea gravel as a base material. Additionally, a protective edging is provided which is attached to the top layer of nylon woven mesh and provides a protective edging surrounding the play area.

Abstract: The present invention discloses a system and method for cleaning the field lines of a septic tank system. The field lines are outflow pipe fluidly connected to the septic tank. To the field line, there is connected a first pipe and a second pipe or a flush pipe and a vacuum pipe. One of the pipes directs cleaning fluid, usually water, into the field line while the other removes the cleaning fluid and other material from the field line through the field line. A third or valve pipe is added between the first and second pipes and the septic tank. A valve can be placed into the third or valve pipe which is used to close the flow of fluid between the septic tank and the first and second pipes.

Abstract: A drain field and a drain field assembly for use with a sewage disposal system are provided that do not require the use of aggregate in the form of rock, gravel, shale, or the like. The assembly contains a distribution pipe having a plurality of holes disposed along its bottom half for receiving liquid effluent. Alongside and beneath the distribution pipe are positioned a plurality of void pipes that serve to retain and distribute the effluent received from the distribution pipe. Draped over the top and along the sides of the assembly is a protective sheeting that is impervious to soil and liquid permeable that serves to keep soil from entering the pipes and also to aid in evapotranspiration. The drain field of the present invention contains the assembly positioned within a trench and covered in backfill material.

Abstract: A portable runoff water diverter can be placed in the path of a flow of runoff water to divert at least a portion of the water to a point where it can advantageously be used, for example to irrigate landscaping. The diverter defines at least one channel through which runoff water, that might otherwise flow to a sewer, is redirected. The diverter advantageously is made of a resilient material such as rubber, so that it may be used in an alley or along a curb, where a flow of runoff water occurs in response to rain, without being destroyed should it be run over by a vehicle.

Abstract: A funnel structure for filtering and discharging storm sewage into an aquifer from a bottom of a manhole. The funnel is adapted to receive unitized filters. These filters can be selected from known materials to most effectively remove known types of contaminants from the storm sewage. The structure is designed to be employed both as a new installation, say within a park or a residential subdivision, to reduce leads on the storm sewage system and as an adaptation to existing manholes within a storm sewage collection system, thus augmenting the capacity of that system.

Abstract: A molded plastic leaching chamber, for dispersing or collecting liquids in soil, has a corrugated arch shape. The sidewall of the chamber is comprised of alternating slot-perforated peaks and valleys connected by slot-perforated deep webs. The unit surface length of perforated sidewall is greater than the unit length of chamber. A combination of interrelated dimensions and angles provide high leaching capacity, strength, and capability to nest for shipment. The sidewall is reinforced by vertically running ribs; the perforated web is reinforced by zig-zag struts. Ribs and struts are shaped and positioned to minimize blockage of the slot openings.

Abstract: Apparatus for treating the soil of a grass playing field that includes a piping system containing perforated pipe lines seated in a distribution bed beneath the soil of the playing field. A blower having a discharge port and a suction port is selectively connected to the duct networks to either pump air upwardly or draw air downwardly through the soil profile. A separator is connected in the air supply line of the system for removing water from the air stream moving between the blower and the duct network. The removed water is collected in a holding tank for recycling, or disposed of in an environmentally safe manner.

Abstract: The present invention is a lawn edging device adapted to be used adjacent borders of walks and plant beds wherein the anchoring portion of the device includes opposing blades that facilitates storage and shipping by eliminating the necessity of external packaging. The edging utilizes a conventional longitudinally extending upper body portion with a vertical anchoring barrier depending therefrom. The anchoring barrier is formed integral to the upper body portion and utilizes a projecting blade positioned on one side of the barrier and receptacle for receiving the blade on the second side of the barrier. When the edging device is wound into a coil, for purposes of shipping and storage, the projecting blade on the first side is inserted into the receiving section on the second side of the anchoring barrier. The blades operate to align the circular bead of the upper body portion into a similar plane so as to provide a coiling of uniform shape.

Abstract: A unique water drain system is utilized for eliminating subgrade water which usually accumulates below ground level and causes cracks or leaks in the concrete foundation. The present system is uniquely designed to be used with permanent wood foundations. A basket-retainer is used to contain and prevent the spread of crushed stone out of position. The crushed stone allows the water to flow through it and to a drain tile. The retainer has a water-permeable membrane around or lined in it to prevent soil or debris from clogging up the crushed stone conduit.

Abstract: A water table lowering assembly includes a discharge line connected to a submersible pump. At least two brackets are secured along the length of the discharge line. A cable is connected at one end to the submersible pump. The cable extends parallel to the discharge line and is connected to the at least two brackets spaced along the discharge line. The opposite end of the cable from the end connected to the pump is formed into a loop through which a hook secured to a backhoe or other lifting apparatus is secured. The backhoe lifts the assembly of the pump and discharge line into a vertical orientation so as to lower the pump, followed by a succeeding length of discharge line, through the opening of a manhole and into a collection basin. Water collected in the collection basin is evacuated by the submersible pump so as to lower the water table surrounding the collection basin.