Abstract: A portable clean-in-place apparatus for a batch processing system. The present invention provides a clean-in-place system on a movable frame adapted to move about a batch processing facility such as a dairy, brewery, pharmaceutical plant, or the like, and clean any or all portions of the batch processing system. Since the CIP system is provided on a movable frame, it can be moved without requiring fixed piping to and from the batch processing line, and since it is relatively small in dimension, it can fit through a standard size doorway to facilitate storage. Moreover, through appropriately sizing and orienting the equipment the apparatus is not only kept relatively small, but can be manufactured at a relatively low cost as well.

Abstract: It is of the type comprising a multi-tool system for inspecting, cleaning and replacing members in an oil installation and is one which comprises a support (8) on which there are mounted means (9, 10, 17) capable of laterally shifting at least two devices (22, 29) in opposite directions, it being possible for at least one of said devices (29) to be rotated about one of said directions.

Abstract: A gas supply system connected to vent a tank of a product filling system is set forth. The gas supply system comprises a high pressure/low pressure gas supply having a common outlet. The high pressure/low pressure gas supply is operable in a first mode of operation in which high pressure gas is supplied at the common outlet and a second mode of operation in which low pressure gas is supplied at the common outlet. A sterile filter having an inlet and an outlet is also provided. A steam supply system is disposed in-line between the common outlet of the high pressure/low pressure gas supply and the sterile filter. A tank valve system is provided having an inlet in fluid communication with the outlet of the sterile filter. The tank valve system also has first and second outlets and is operable in a first mode of operation in which the inlet is placed in fluid communication with the first outlet and a second mode of operation in which the inlet is placed in fluid communication with the second outlet.

Abstract: An apparatus for coating the inside of pipes An apparatus for coating the inside of pipes, in particular the coolant pipes of steam condensers and heat exchangers with plastics, having a supply unit (V) for bringing up and passing on coating material, an application unit (A) for applying the coating material brought up by the supply unit, and a control unit for monitoring and controlling the supply of coating material and the discharge of coating material on the inside walls of pipes, the application unit (A) having a guide tube (21) with a nose piece (29) to be mounted on the pipe to be coated and an application tube (18) with an application nozzle (30), said application tube being guided within the guide tube (21) and adapted to be introduced into the pipe to be coated through the nose piece (29).

Abstract: The solvent and air mixing system is used in an air solvent purging/cleaning system for an at least two liquid component mixing and applying system or a paint color changing system. The mixing and applying system includes at least two sources of liquid coupled to a mixer through respective control valves. An air solvent purging/cleaning system is provided including an air supply line and an air purge valve and a solvent supply line and a solvent purge valve coupled to the mixing and applying system or to a paint color changing system. A pneumatic valve control system is provided for controlling the supply of pressurized air to the air purge valve and for controlling the supply of solvent to the solvent purge valve. The solvent and air mixing system of the present invention includes a solvent and air mixing device having an air passageway coupled into the supply line for supplying pressurized air to the air purge valve. An air bleed backflow device is mounted in the pressurized air supply line.

Abstract: A portable system and method for softening and disinfecting dental waterlines is disclosed. The portable system and method combines a routing valve, a water supply, and a portable device capable of delivering a descaling and an anti-microbial agent. The routing valve has an inlet and an outlet. The outlet is attached to a water supply line of sufficient volume to deliver water throughout the system. The inlet is attached to a portable device capable of delivering a descaling agent and an anti-microbial agent.

Abstract: An outboard motor is provided with a cleaning apparatus for cleaning a cooling water passage, in which the cooling water passage is formed and an engine is covered by an engine cover, the cleaning apparatus including a connection device to which one end of a cleaning water tube, which is connected at another end thereof to the cooling water passage of the engine, is connected and a cleaning water hose is connectable to the connection device from an external side thereof. The connection device comprises a grommet mounted to the engine cover and a connector assembly mounted to the grommet. The connector assembly has a double-tube structure having an inside connecting portion and an outside connecting portion, the inside connecting portion having a union structure to which a city hose or garden hose is connected and the outside connecting portion having an outer peripheral portion to which a screw portion is formed.

Abstract: A dairy pipeline wash system for monitoring and controlling the wash cycle of a dairy harvesting facility including a user interactive data processor for receiving and storing wash parameters, monitoring wash conditions, comparing monitored wash conditions to wash parameters, and controlling wash conditions to comply with wash parameters. The dairy pipeline wash system may include a closed loop or fuzzy logic system to vary wash conditions as dairy pipeline conditions change.

Abstract: Cleaning a milk tank includes rinsing the tank with cold water and washing the tank with a warm liquid. During rinsing, the tank is finally rinsed with substantially warmer water than the cold water with which the tank is initially rinsed, the cold water being cold enough to remove milk residues such as proteins, from the milk tank. A dairy farm milk storage facility specifically adapted for carrying out this method is also described. Milk residues such as proteins are effectively rinsed away by the initially used cold water and no energy is consumed for heating this rinsing water. Subsequently the storage tank is gradually, evenly and very effectively pre-warmed by the final rinsing water prior to the washing stage, so less washing water is required to achieve the required washing temperature while thermal stresses occurring in the tank are kept low.

Abstract: A cleaning tool includes a support substrate, a cleaning member, a shaft member where the cleaning member is connected to one end of the shaft member detachably, and support member mounted to the a support substrate for supporting the one end of the shaft member with the cleaning member so that the shaft member and cleaning member are oscillated freely in a direction which intersects perpendicularly to an axial direction of the shaft member. The cleaning tool may be used to clean an end surface of a ferrule of the optical connector.

Abstract: A connector for use with a lumen device during the cleaning and sterilization of devices is provided. The connector provides fluid communication between a fluid source and the device. In particular, during the cleaning and sterilization cycle, the connection between the connector and the device does not produce occluded areas at the point of connection where the connector is sealably attached to the device.

Abstract: A system using a secondary cleansing fluid achieves a fully functional irrigation and cleansing system for a medical container and associated tubing and adapter. A connection to a standard interior faucet, using pressurized water in conjunction with a negative pressure device, creates siphoning of a secondary fluid into fluid contact with the water for mixing. In addition, the system provides for an efficient connection for the associated tubing of less than half an inch in diameter for filling, cleansing, and flushing.

Abstract: Disclosed are a cleaning and disinfecting method for treating the surfaces of hemodialysis equipment which are exposed to a dialysate or pure water which comprises the use of electrolyzed hyperacidity water for cleaning and disinfection, as well as a cleaning disinfectant consisting of electrolyzed hyperacidity water, and a cleaning and disinfecting apparatus. The method insures effective cleaning and disinfection and even elimination or inactivation of endotoxins in a reduced time, efficiently, and with reduced water consumption.

Abstract: This invention relates to an improved sewer system for recreational vehicles. Specifically, a four way pipe connector is provided which resides below a flushing tank and connects the flushing tank, the gray water waste tank, the black water waste tank and the dump hose. Valves selectively open and close access to the four way pipe connector. The flushing tank includes five gallons of water which are selectively flushed through the dump hose to remove any waste residue that remains after draining the black or gray water waste tanks.

Abstract: A washing apparatus for spray guns and their components wherein a washing operation is provided which is realized by feeding clean liquid and air.

Abstract: A waste tank clog removal system is provided for removing clogs during draining of a waste tank through a drain line. This system removes the clog by flushing the clog back into the waste tank. A bypass valve and a hose assembly are added to an existing waste tank drain and rinse system. The hose assembly is connected to the bypass valve and routed to the drain line, between a ball valve and a drain valve. When clogging occurs, the bypass valve is rotated to a bypass position, the drain valve is closed, and rinse fluid fills the drain line to push the clog back into the waste tank.

Abstract: This invention relates to an adaptor having one end for activating a valve and another end for connection to a rod said adaptor including a socket at said one end to register with said valve for operating said valve, and including a slot at said other end for receiving and pivotally connecting to said rod. The invention also teaches a pin removal tool for removing pins underground from the surface.

Abstract: A draw-tube solvent retaining and draining cover is disclosed, comprised of a main body, of a generally linearly elongated, cylindrical, hollow configuration. The main body is of sufficient length to allow a conventional pick-up tube to pass through the main body and into a paint can. Grooves to improve gripping are located on the exterior circumferential surface of the main body. The main body is comprised of an upper portion and a lower portion, which connect via mated threads on the bottom of the upper portion and the top of the lower portion. An upper cap is located on the top of the upper portion, releasable secured to the top portion of the main body via mated threads. The upper cap is releasably secured to the packing cylinder of the majority of airless sprayers via a universal attachment means. The upper cap has a pick-up tube hole and a return hose hole. O-rings are located between the various components.

Abstract: An electrohydraulic transducer (10) for generating pulsed acoustic waves within a fluid-filled pipeline and a method of cleaning a fluid-filled pipeline with acoustic waves. A housing (11) contains a ground electrode (13) and a high voltage electrode (15), which are spaced to create a spark gap. The ground electrode (13) is connected to one conductor of a coaxial cable (14). The high voltage electrode (15) is connected to another conductor of the coaxial cable (14). Electrical pulses applied to the high voltage electrode (15) result in pulsed acoustic waves. The housing has slots (11a), which permit the acoustic waves to emanate radially from the transducer (10).

Abstract: A circuit is provided for the circulation of solvent to and from a valve having a movable component and a housing for movably housing the movable component. The movable component has a first orientation with respect to the housing in which it permits the flow of a valved fluid from the valve through a first port provided on the valve and a second orientation with respect to the housing in which it permits the flow of the valved fluid from the valve through a second port provided on the valve. The circuit includes a first passageway provided between the movable component and the housing. A third port is provided on the housing for the introduction of the solvent into the housing and a fourth port is provided on the housing for removal of the solvent from the housing. The first passageway couples the fourth port to the third port. The solvent is a solvent for the valved fluid. A reservoir is provided for the solvent, along with conduits for coupling the third and fourth ports to the reservoir.

Abstract: An apparatus for cleaning a sprayer, the sprayer having a material inlet, comprising a housing, a rack within the housing for supporting the sprayer, an adapter having one end adapted to connect to the material inlet of the sprayer, a tube within the housing having one end connected to the other end of the adapter, a solvent supply, and means for circulating solvent connecting the solvent supply to the tube, for circulating solvent from said solvent supply, through the tube and the adapter, and into the sprayer. The apparatus includes a sprayer trigger holder, comprising a unitary, resilient, spring wire clip, having at one end a C-shaped portion for holding the trigger in a retracted position, and the other end of the wire clip having a hook-shaped portion for hanging the sprayer.

Abstract: Disclosed is an automated pipe connection apparatus having an automated connection apparatus main body (1) capable of performing automated change-over between a group of pipelines and another group of pipelines, a washing/sterilizing utility block (2), and a drainage block (3). In particular, the automated pipe connection apparatus is provided with caps (111,112,114,115) for preventing intrusion of sundry bacteria into couplers (A1,A2,B1,B2) on standby and for performing washing and/or sterilization operation and also with washing- and/or sterilizing-purpose couplers (AWL,BWL).The apparatus according to this invention is superior in the operability for washing and sterilization and in the prevention of intrusion of sundry bacteria.

Abstract: During the cleaning of a beverage dispense line from a beverage container to a beverage dispenser, beverage is conserved by transferring beverage from the beverage dispense line to a beverage holding vessel, other than the beverage container, prior to cleaning of the dispense line. The beverage dispense line is then cleaned and the beverage from the beverage holding vessel is subsequently returned to the beverage dispense line.

Abstract: There is provided an apparatus and method for simultaneously cleaning a plurality of elongated hollow instruments, preferably surgical instruments, each of which has a first opening and a second opening. The apparatus includes a fixture for receiving the plurality of hollow instruments. The fixture includes a clamp for removably securing the instruments to the fixture. The fixture includes a hollow upright cylinder which is attached to a source of fluids. The upright cylinder is attached to a hollow manifold located below the clamp. The manifold includes a plurality of tubes extending therefrom which are adapted to be connected to the first openings in the instruments. Washing, rinsing and drying fluids pass through the fixture and through the instruments on a timed cycle so that the instruments may be cleaned simultaneously.

Abstract: A product recovery system for recovering product from a pipeline having a supply end and a destination end and having a path of primary product flow from the supply end to the destination end. The product recovery system includes a pig launching station connected to and in communication with one end of the pipeline. The pig launching station has a pig parking chamber which holds a pig outside the primary product flow. The product recovery system has a pig catching station connected to and in communication with the destination end of the pipeline. The pig catching station includes a clean-in-place chamber for housing a pipeline pig while the pig is cleaned without removing the pig from the product recovery system. A valve may be used to push the pig out of the clean-in-place chamber so it may be returned up the pipeline.

Abstract: An apparatus for conveying a process gas stream from an upstream source to a downstream treatment unit, including a manifold receiving gas from the upstream source, including first and second valved inlet lines which are alternatingly employed to flow gas to a downstream process. The manifold is arranged so that one of such lines is actively flowing gas from the upstream source to the downstream process, while the other is blocked by closure of the valve therein and is undergoing regeneration. A pressurized water source is coupled with the manifold, by valved water flow lines to each of the first and second inlet lines, with the water flow line valves being selectively openable or closeable to establish or discontinue flow of pressurized water therethrough, respectively. Cycle timer control means are employed to control the operation of the manifold and valves, for water cleaning of the off-stream inlet line.

Abstract: Apparatus for grinding tapers and points on elongated needle workpieces having frame means and needle workpiece transport means associated with the frame means for transporting a plurality of the workpieces. The workpiece transport means has a predetermined curvature and workpiece feeder means is mounted adjacent the frame means for feeding workpieces to the workpiece transport means. The grinding means is preferably a grinding wheel disposed adjacent the workpiece transport means to engage workpieces while supported by workpiece supporting means and has a major diameter at a first end and a minor diameter at a second end, the major diameter being greater than the minor diameter. The diameters are connected by a curved grinding surface the diameter of which increases progressively therebetween.

Abstract: The present invention refers to a device for cleaning milking cups. Known devices of this type have a cleaning element which is adapted to be attached to a milking cup and which is adapted to be used for rinsing the milking-cup interior and for spraying rinsing liquid onto the end face of the milking cup so as to clean the outer surface thereof. The present invention provides an improved cleaning device comprising a cleaning element which is adapted to be attached to the milking cup such that a flow chamber is formed for producing a rinsing flow along an outer surface area of the milking cup which is to be cleaned. By means of this solution according to the present invention, an improved cleaning effect is achieved and the rinsing agent conducted through the flow chamber can then be used for cleaning the interior of the milking cup.

Abstract: A beer supply line is cleaned by forming a closed loop that includes the beer supply line, introducing a cleaning or flushing fluid into the closed loop, and operating valves in the loop to cause the cleaning or flushing fluid to flow through the loop in alternating directions.

Abstract: A spray gun cleaning device for capturing and condensing cleaning solvent and a method for using. The spray gun cleaning device comprises:(a) a passage way comprising an inlet and an outlet, wherein said inlet defines a receptacle for receiving a spray gun nozzle,(b) a vertically descending member having a proximal opening and first and second distal openings, wherein the first distal opening is located downstream from the proximal opening and at a 90.degree. angle to the second distal opening, and wherein the descending member is connected to the passage way at its proximal opening,(c) a waste collection container located downstream of the vertically descending member, and connected to the first distal opening of the descending member, and(d) a vertically ascending passive condenser attached to the vertically descending member at its second distal opening, wherein the condenser comprises a multiplicity of tubular members located adjacent to one another.

Abstract: An improved milking machine backflush valve (2) includes inlet and outlet plates (18, 20) between which a slide pad (16) is slidably housed. The inlet plate has a milk inlet (24) and the outlet plate has a milk outlet (28). The slide pad couples the milk inlet to the milk outlet when in a milking position, and couples the milk inlet to a source of cleaning solution (22) when in a backflush position. The slide pad and inlet and outlet plates have smooth, contacting sliding surfaces (34, 36; 66, 68) and are made of a non-liquid absorbing material, preferably PTFE, so that no seals, which can wear and harbor milk residue and thus bacteria, need be used.

Abstract: A system is provided for recycling a water ladened solvent used for purging a paint supply line of a paint sprayer. The purged material including a mixture of water ladened solvent and paint is filtered for separating the water ladened solvent from the paint. The water ladened solvent is collected and then reused for purging the paint supply lines of the paint sprayer.

Abstract: A system for disinfecting the water lines of a dental unit is provided with first and second unidirectional check valves. Water at a first pressure is normally supplied to the water lines of the dental unit through the first check valve. A reservoir of liquid disinfectant can be pressurized at a second pressure higher than the first pressure by the air compressor already equipping the dental unit to supply disinfectant to the water lines of the dental unit through the second check valve. Liquid disinfectant is prevented from reaching the water supply line by the first check valve. In the same manner, when the reservoir is not pressurized, the second check valve prevents water from the water supply line from reaching the disinfectant.

Abstract: Carbon deposits and related residue are removed from he internal surfaces of components of an internal combustion engine, particularly the fuel ports of a carbureted engine and the injection nozzles of a fuel injection engine, by circulating an engine conditioning fuel, through the engine utilizing a conditioning fuel pump, preferably driven by a fluid driven motor, for pumping conditioning fuel to the engine. The conditioning apparatus can detect leakage of the fuel pressure regulator of a fuel injected engine and can operate in both a one-line mode in which conditioning fuel flows one way from the apparatus to the engine and a two-line mode wherein the conditioning fuel is recirculated through the engine and conditioning apparatus. A preferred embodiment provides diagnostic features for checking the conditioning apparatus and certain engine components.

Abstract: A sanitary coupling device and a method for its use are described. The sanitary coupling device taps a vessel, such as a brewery tank, without exposing the fluid to the atmosphere. The device can include a coupler that prevents the collected fluid from exposure to the atmosphere. The method for tapping a vessel can include engaging a nipple with a coupler. Then, collecting a sample and disengaging the coupler from the nipple is performed. The invention is desirable for a brewery tank sampling with a clean-in-place connection system.

Abstract: A double seat valve has two serially arranged closure members that are movable with respect to each other, that prevent in the closed position of the valve fluids from overflowing from one part (1a) into another part (1b) of the valve housing and that delimit both in the closed and in the open position of the valve a leakage cavity (3). The valve rods (5a, 6a) for the closure members (5, 6) are concentrically arranged inside each other and unilaterally extend out of one part of the valve housing into the surroundings of the valve. The disclosed double seat valve satisfies the requirement for a leakage cavity that can not be drained, but also pressure-relieved in all imaginable operating conditions.

Abstract: The solvent and air mixing system is used in an air solvent purging/cleaning system for an at least two liquid component mixing and applying system or a paint color changing system. The mixing and applying system includes at least two sources of liquid coupled to a mixer through respective control valves. An air solvent purging/cleaning system is provided including an air supply line and an air purge valve and a solvent supply line and a solvent purge valve coupled to the mixing and applying system or to a paint color changing system. A pneumatic valve control system is provided for controlling the supply of pressurized air to the air purge valve and for controlling the supply of solvent to the solvent purge valve. The solvent and air mixing system of the present invention includes a solvent and air mixing device having an air passageway coupled into the supply line for supplying pressurized air to the air purge valve.

Abstract: A readily transportable, compact and self-contained drain cleaning apparatus includes a hand-held control housing that is provided with an internal passage into which a release member and an adjustable regulating unit extend at spaced intervals such that a fluid chamber is defined between the release member and the regulating unit within the internal passage. The control housing includes a cartridge housing portion for attaching a miniature cartridge, containing a pressurized gaseous medium and preferably either a drain cleaning or algaecide fluid, thereto with an interior of the cartridge opening into the internal passage downstream of the regulating unit. Upstream of the release member, the control housing has an elongated tube attached thereto and the tube has an end, remote from the control housing, provided with a terminal discharge member that is adapted to be sealingly engaged with an open portion of a clogged drain conduit.

Abstract: A device for washing the teat cups in a milking head, comprising an axially displaceable milking-head holder and a fitting therefor having rinsing nipples over which teat cups fit, wherein the milking-head holder has an axis which is eccentric to an axis of the fitting, and wherein the milking-head holder has an alignment rod mounted for sliding movement back and forth axially in a guide sleeve and whereas the device operates in a specific position wherein the axes of the milking-head holder and the milking-head fitting deviate from the vertical.

Abstract: For cleaning endoscopes which have at least two channels with one inlet and one outlet that each open into a chamber of the endoscope, wherein the inlets are connectable to a source of cleaning fluid, the invention provides for an insertion element insertable into the chamber of the endoscope head, said insertion element features controllable seals that in the activated state rest against the wall of the chamber and thus form mutually separated annular spaces that communicate with each channel and connect one associated inlet in the sense of the flow with an associated outlet, whereas in the deactivated state they feature a distance between the insertion element and the wall. This ensures that each channel is individually cleaned, and that the cleaning can also be monitored. In order to clean the surface of the chamber covered by the activated seal, the seal is deactivated so that this location can then also be rinsed.

Abstract: This invention relates to an adaptor for activating a valve, the adaptor includes a socket at one end thereof to register with the valve, the socket including at least one displaceable engageable ball plunger for gripping the valve when the socket is urged against the valve for operating the valve. The invention also relates to a service box assembly for a water valve disposed in the ground which utilizes the adaptor as well as the method of exposing a water valve to reinstall an inoperable service box rod in a service box assembly having a water valve below ground level. The invention also teaches installation tools to locate and maintain a service box rod within a service box assembly.

Abstract: The invention relates to a double seat valve with a controlled leakage cavity according to the preamble of claim 1. It is an object of the present invention to create favorable conditions for complying, in most points, with the so-called US-American 3A standards and FDA regulations. This object is achieved inter alia by providing between the sealing places (7, 8; 70, 71) a penetration cross-section (6a) from the inside space of the valve casing parts (1, 2) to the leakage cavity which at least corresponds to the nominal cross-section of the double seat valve and by using the same dimensions for the connection via the leakage cavity (6) and between the leakage cavity and the environs of the double seat valve.

Abstract: A buffer system for separating an aseptic fluid handling assembly from a drain includes a fluid receiving housing in fluid flow communication with a fluid discharge outlet of the aseptic fluid handling assembly. A trapped fluid discharge opening near the bottom of the housing, includes a tube which extends above the bottom into a baffle container. The baffle container is in the form of an enclosure having openings at the bottom thereof to admit fluids contained in the housing. A discharge conduit is in fluid flow communication with the discharge opening. A first fluid level detector in the housing activates at least one valve in the discharge conduit by a control which opens and closes the valve in response selected fluid levels detected by the fluid level detector. In a preferred embodiment the first fluid level detect detects a fluid level exceeding a preselected depth in the housing and a second fluid level detector detects fluid levels dropping below a second preselected level in the housing.

Abstract: An endoscopic instrument cleaning apparatus includes a syringe coupled to a flushing chamber by a form-fitting stopper. A distal, or instrument receiving end of the flushing chamber is inserted into a supply of cleaning fluid and the plunger of the syringe is drawn out to its fully retracted length, thereby filling the syringe and the flushing chamber with cleaning fluid. Then the distal end of an endoscopic instrument is inserted about through an aperture in a stopper having the shape of a conical frustum and is inserted into the flushing chamber to a depth of about 4 inches (10 cm) and the plunger of the syringe is thrust forward to inject pressurized cleaning solution through the endoscopic instrument. In another embodiment, the syringe receiving stopper is recessed within a proximal end of the flush chamber by about 3/8 inches (0.95-1.

Abstract: A method and system for purging an ultra-high purity gas supply manifold comprising: a process connection through which ultra-high purity gas is communicated to a process; a first pigtail conduit in selective flow communication with a high purity gas source; a second pigtail conduit in selective flow communication with said process connection; means for creating a vacuum and means for selectively placing said vacuum means in communication with said first pigtail; an ultra-high purity process gas source; a block valve assembly comprising an inlet port in flow communication with said process gas source, a first outlet port in selective communication with said purge gas supply through connection with said first pigtail and second outlet port in selective communication with said process connection through connection with said second pigtail.

Abstract: A system using a secondary cleansing fluid achieves a fully functional irrigation and cleansing system for a urostomy patient night drainage container and associated tubing and adapter. A connection to a standard interior faucet using pressurized water in conjunction with a negative pressure device creates siphoning of a secondary fluid into fluid contact with the water for mixing. In addition, the system provides for an efficient connection for the night container tubing of less than half an inch in diameter for filling, cleansing, and flushing.

Abstract: An apparatus for the cleaning of spray guns and components thereof, and more particularly, a preferably portable and compact apparatus including an enclosed cabinet structure for the contained cleaning of paint spray guns and various accessories thereof in order to minimize the emission of volatile organic compounds from cleaning solvents.

Abstract: A double seat flow control valve includes three pneumatic pistons enclosed within two air chambers to operate upper and lower valve disks for venting operations in addition to valve opening and valve closing operations. An air boost is provided for the upper valve disk to maintain the upper valve disk in a closed position during venting of the lower valve disk.

Abstract: A cleaning system for cleaning the interior pump and piping system of a whirlpool spa is disclosed. The device comprises a compartmentalized tank having an intake chamber and an outlet chamber. The outlet chamber is placed into fluid communication with the spa's suction intake fitting. The intake chamber is placed into fluid communication with the spa's jet openings. Cleaning fluid is introduced into the outlet chamber and cycles from the outlet chamber, through the spa's pumps and pipes, through the spa's jet openings, into the intake chamber, and back into the outlet chamber, which is in fluid communication with the intake chamber. From there, the fluid begins the cycle again. A pair of cooperating valve assemblies block fluid communication between the intake chamber and the outlet chamber and force the cleaning fluid out of the device upon the completion of the cleaning operation.

Abstract: A method of and system for cleaning and maintaining water distribution pipes which have reduced flow due to an increase of water scale deposits, sediment and the like along the inside surface of the pipe includes a mobile cleaning unit which can be conveniently and easily connected to a pipe section to be cleaned. An aqueous cleaning solution is introduced and circulated in a first direction through the pipe section for sufficient time to dissolve and loosen scale and sediment. The flow direction of the treating solution is then reversed to break off or remove sediment or other tuberculated growth that has developed directionally with the direction of water flow in the pipe section. The turbulent flow in the opposite direction increases the effectiveness of the cleaning process in particularly troublesome and hard-to-clean pipe sections. The spent treating solution and other deposits are flushed from the pipe and the mobile cleaning unit to an appropriate waste stream.