Abstract: The present invention is a water filter pitcher equipped with a removable, replaceable filter cartridge and means to count the number of times the pitcher is filled with water, and also means to notify the user when the pitcher has filtered enough water to exhaust the filtering capacity of the filter cartridge so that the user can replace the filter cartridge when necessary but does not have to remember to change the cartridge at a specific interval or count the number of gallons filtered manually, and instead can rely on the water filter pitcher to track the amount of water filtered and inform the user when to change the filter cartridge.

Abstract: An apparatus and method for collecting whole blood and then separating it into components for subsequent use or storage. A self-contained bag set is used to collect the sample, which may then be placed into a device adapted to fit into a centrifuge for separation of components. Each component is then sequentially extracted according to density, with a sensor present in the device to control the operation of valves directing the collection of each component. The sensor may be reading one or more of the following characteristics: infrared, optics, density, weight, radioactive, fluorescence, color, magnetism, ultrasonic, capacitance wherein the characteristic is inherent in the blood and blood component or is an additive. Each component may then be separated into its own storage container. The preferred sensors include optics and weight.

Abstract: A water filter system including a base configured for receiving water from a faucet and a filter cartridge seated in the base. The filter cartridge defines a first chamber having at least one filter element, and a second chamber in fluid communication with the first chamber. An enhancement cartridge is removably inserted in the second chamber and includes an enhancement material for adding minerals to the water. The enhancement cartridge is removable from the system separate from the filter cartridge.

Abstract: A floating dispenser is provided for dispensing a solid, dissolvable water treatment chemical into ambient water. The dispenser includes a bucket having top and bottom ends, a top wall covering the top end, an opening for admitting ambient water into the bucket interior, and a floatation ring that keeps only the top end above water such that the interior is water filled when the dispenser floats. A basket is disposed in the interior of the bucket for carrying a solid, dissolvable water treatment chemical, such as calcium hypochlorite. The basket is buoyant and movable vertically toward the top wall of the bucket. The dispenser includes a refill indicator that indicates when most of a full load of said chemical has dissolved. The refill indicator includes a pair of tabs that are connected to the basket and slidably mounted in slots in the top wall.

Abstract: Disclosed herein is an advanced wastewater treatment device. The device includes a wastewater treatment bath having an anaerobic bath in which phosphorus is discharged, an anoxic bath in which denitrification of nitrate nitrogen is performed, and an aerobic bath in which decomposition and nitrification of organic matter is performed. A first movable divider separates the anaerobic bath from the anoxic bath and is movably provided in the wastewater treatment bath to change relative volume of the anaerobic and anoxic baths. A second movable divider separates the anoxic bath from the aerobic bath and is movably provided in the wastewater treatment bath to change relative volume of the anoxic and aerobic baths. A divider moving unit moves the first and second movable dividers. An air supply unit includes air nozzles, an air pump, and valves. A recycling unit recycles activated sludge of the aerobic bath to the anoxic bath.

Abstract: A diagnostic tape cassette especially for blood sugar tests comprises a test tape which is provided with a plurality of test fields for analysing body fluid, and a housing for receiving the test tape. The housing may have at least one housing part formed from a metal support and moulded-on plastic with integrated functional elements.

Abstract: A filter device, especially a line filter forming part of hydraulic installations, includes a filter housing (1) that can be removed from a filter head and is used to receive a filter element (5) that separates a non-filtered side (13) from a filtered side (11) in a position in the filter housing for the operation of the filter. The filter device is provided with a display device (19, 21) signaling the absence or presence of the filter element (5) in the filter housing (1) in the operating position.

Abstract: A method and apparatus for providing wireless communication and optionally power to the interior of a housing assembly is disclosed. In one embodiment, an antenna is molded within a gasket material, such as silicon, so as to be completely encapsulated. The gasket preferably includes at least one support arm, which holds the antenna toward the middle of the housing, so as to minimize interference from the metal housing. In further embodiments, an inductive coil is encapsulated in the gasket. An alternating current is passed through this coil to create a changing magnetic field, which can then be used to create electrical power in physically separate components, such as filtering elements. In certain embodiments, multiple loops are molded to correspond to multiple filtering elements within the housing.

Abstract: A reservoir for use with a blood collection system includes a housing, a pre-filter, and a spring mechanism. The housing defines a cavity and has an inlet for receiving fluid from a source. The pre-filter is located within the cavity, removes particulates contained within the fluid, and allows the fluid to pass through the pre-filter. The spring mechanism is connected to the pre-filter and allows the pre-filter to travel within the cavity as the pre-filter collects particulates.

Abstract: A swimming pool cleaning vehicle is disclosed herein. The vehicle includes a housing and the housing having a body shell and a frame and an interior with the housing. The housing, having an outlet, for releasing air from the shell. The shell being removable attached to the frame, the frame including a base. The vehicle including a filtration system having a pump motor for pumping pool water through filtration system, the pump creating a suction force, the suction force being sufficient to allow the vehicle to climb the pool walls. The vehicle capable of climbing the pool walls. And, the vehicle capable of breaking the surface of the water as it climbs pool walls. The vehicle including logic means for first, initiating vehicle movement, second, shutting off pump, and third, re-starting pump.

Abstract: A polar liquid mixture containing suspended or dissolved particles or solute is exposed to air or a hydrophilic surface. An exclusion zone having a reduced concentration of particles or solute is formed in the polar liquid adjacent to the interface with air or the hydrophilic surface. One or more fractions of purified polar liquid and/or concentrated particles or solute are collected. A sensor can provide feedback to the collector.

Abstract: A filter trap into which waste water can be dumped to separate particulate matter from the water. A sensor senses when the liquid level in the filter trap rises above a predetermined level, and triggers an alarm to indicate the filter basket is full of particulate matter and must be removed to dispose of the contents. The withdrawal of the filter basket from the filter trap causes the inlet thereto to automatically close so that waste water cannot be dumped into the filter trap when the filter basket has been removed. A sensor senses when the filter basket has been removed to provide a visual indication thereof.

Abstract: The present invention relates to a device for cleaning a fluid, wherein the device comprises a vessel, a filter bed with granular filter material, such as sand, wherein the filter bed is provided in the vessel; a transport system arranged to agitate filter material of the filter bed during operation; and a sensor system. The sensor system comprises a contact body that comes in contact with the filter material in the filter bed; and a vibration sensor connected to the contact body for sensing vibrations of said contact body. The vibration sensor is arranged for producing a signal which is dependent on the vibrations detected by the sensor. The contact body comprises the wall of the vessel and/or a rod extending into the filter bed.

Abstract: A leakage indicator is provided for a filter element of a filter press, in which the filter element has at least one membrane that can be impinged by a pressure medium. In order to create a leakage indicator that is constructed in a particularly simple manner, an indicator body is freely movable in a flow chamber. Any change in position of the indicator body, which is caused by inflowing or outflowing pressure medium, can be monitored visually or through the use of sensors.

Abstract: A percolation filtering system comprises a flow path of the water to be filtered including a filter cartridge seat (4) for removably receiving a filter cartridge (5) so that said flow path extends through said filter cartridge when said filter cartridge is inserted into said seat, characterised in that it comprises recognition means and counter-means of the suitability of said cartridge, respectively on said cartridge and said seat, suitable for reciprocal interaction when the cartridge is inserted in the seat to enable operation of the filtering system following the cartridge's suitability recognition, or to disable it or signal the suitability/unsuitability respectively of the cartridge if the cartridge is recognised/not recognised respectively by the recognition means

Abstract: A novel system and method for fluid management for accurate continuous venovenous hemofiltration (CWH) in extracorporeal membrane oxygenation (ECMO). The fluid management or CWH system is automated and configured for operation as a stand alone unit and can be easily integrated with an ECMO system. The fluid management system is capable of producing either perfect or negative fluid balance between ultrafiltrate removal and replacement fluid delivery. The fluid management system can achieve electrolyte replacement over a range of flow rates needed to care for patients ranging from neonates to adults. Finally, the novel fluid management system preserves patient safety, maintains sterility during operation, is easy to operate, and is compact enough to fit near a patient's bed.

Abstract: Wireless water purification systems and wireless remote dispensing devices for a water purification system. The remote dispensing device is fluidly coupled with the main purification unit. A wireless transceiver is associated with the remote dispensing device and another wireless transceiver is associated with the main purification unit. The wireless transceivers communicate across a wireless communications link between the remote dispensing device and the main purification unit. The system may include multiple remote dispensing devices and/or multiple main purification units.

Abstract: A medical connector (18) has a visual signal (67) formed by a coloured screen- applied band arranged on a bolt (63). In a correct engaged position of the bolt (63) with an external element, the signal is visible. In an incorrect engaged position, the part of the bolt (63) bearing the signal is lowered, so that the signal is hidden from view, providing an indication of a faulty situation. The medical connector serves to connect the end of a dialysate supply tube to an inlet port of a dialyser.

Abstract: A water treatment system comprising a separable water treatment component and a host water treatment apparatus is described. The component is useable in the host apparatus, and has an electronic circuit which is adapted to co-operate with an electronic circuit in the host apparatus. In typical operation, the electronic circuit of the component includes at least a data tag, and the presence of the data tag is identified by the electronic circuit of the host apparatus upon correct fitment and/or installation of the component, which creates a two-way communication protocol. The host apparatus can then upload relevant data from the data tag, etc., and the component's circuit can download the relevant information from the host apparatus. The present invention provides the benefits of electrical co-operation and data tagging.

Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.

Abstract: A fuel filtration device includes a first filter normally used to filter foreign substances in fuel, a second filter used to filter foreign substances in fuel only in a state where a degree of clogging of the first filter is larger than a predetermined level, and a regulating device for regulating a flow of fuel through the second filter. The regulating device disables the flow of fuel through the second filter to limit the filtering of foreign substances through the second filter when the degree of clogging of the first filter is equal to or smaller than the predetermined level. The regulating device enables the flow of fuel through the second filter to permit the filtering of foreign substances through the second filter when the degree of clogging of the first filter is larger than the predetermined level.

Abstract: An evacuation system includes at least one fluid intake, at least one fluid outlet, at least one operational component, such as an evacuation motor, and a first read/write device for transmitting, receiving, or storing information. The evacuation system also includes a filter having a second read/write device for transmitting information to the first read/write device. A microcontroller, which is in functional communication with the first read/write device and the operational component, interprets the information received by said first read/write device and controls the operational component based on said interpreted information.

Abstract: An oxygenator which helps avoid bubbles in the blood from being discharged through the blood outlet port of the oxygenator includes a housing, a hollow fiber membrane bundle in the housing and formed by a multiplicity of hollow fiber membranes serving for gas exchange, gas-inlet and gas-outlet ports communicating with gas passages of the hollow fiber membranes, and a blood-inlet and blood-outlet ports. A filter member is provided on a side closer to the blood outlet port of the hollow fiber membrane bundle and serves to catch bubbles in blood. The blood outlet port projects from the housing and a passage enlargement is provided in a vicinity of the end of the blood outlet port closer to the housing and having an increased passage cross-sectional area. The blood passed the filter member is allowed to reach the blood outlet port by being decelerated in the passage enlargement.

Abstract: It is an object of the invention to provide a optimized rational water treatment technique for chemically treating water to be treated. A representative water treatment apparatus is adapted for chemically treating water by using chemicals. In a water treatment apparatus, a disinfectant within a chemical cartridge dissolves out in water to be treated in a disinfecting chamber so that the water is disinfected. Further, a magnet is disposed within the chemical cartridge. The accommodated position of the magnet within the chemical cartridge is changed according to the remaining amount of the disinfectants. The magnetism of such magnet is detected by a magnetic sensor disposed on the outside of the chemical cartridge, so that information on consumption of the disinfectant can be detected.

Abstract: A faucet assembly including a base defining a water delivery passageway, a valve member received in the base and movable between a closed position wherein flow through the water delivery passageway is blocked and an opened position wherein flow through the water delivery passageway is permitted, a magnet secured to the valve member such that, when the valve member is rotated to the opened position, the magnet is aligned with a sensor bore of the base, and when the valve member is rotated to the closed position, the magnet is unaligned with the sensor bore, a metal rod positioned in the sensor bore, and a Hall effect sensor positioned below the base in alignment with the sensor bore and adapted to switch on when the magnet is aligned with the sensor bore and switch off when the magnet is unaligned with the sensor bore.

Abstract: Chromatographic column system, in particular a chromatographic column system of the expanded bed adsorption column type comprises a column connected to a fluid inlet and a fluid outlet and dimensioned to comprise an expandable filter bed between said fluid inlet and said fluid outlet. A top collector is adapted for collecting substance filtered by said filter bed and top collector actuator is provided for actuation of the top collector. A top stratum position detector is constructed and adapted to detect a top stratum of the filter bed when in expanded state; and a controller is provided communicatively coupled to said top stratum position detector and said top collector actuator, for moving the top collector as a function of a detected top stratum position. A clean and automated way is provided to optimize the collection of filtered substance.

Abstract: An extracorporeal blood processing method using a blood circuit comprising a pair of blood passages attached to opposite flow ends of a blood treatment device and said blood circuit is mounted on a blood pump console, the method includes: withdrawing blood from a vascular system of a human patient and drawing the blood into the blood circuit; pumping the withdrawn blood through one of the pair of blood passages using a first blood pump of the console and into the blood treatment device; pumping the treated blood from the treatment device through the other of the pair of blood passages using a second blood pump of the console; infusing the treated blood from the other blood passage and into the vascular system of the patient, and periodically reversing a flow direction of blood through the pair of blood passages and blood treatment device.

Abstract: An indicator for the status of the filter is provided. The indicator comprises at least one erodable member in contact with the source fluid and a visual indication arrangement that permits a viewer to gauge the appearance of the erodable member to thereby gauge the filter status. The erodable member is eroded by interaction with the fluid or with an element within the fluid. The indicator may be incorporated as an integral component of a filter or may be a stand-alone device to be incorporated into a filter or filtration system.

Abstract: A density centrifuge blood processing system with automatic two-dimensional optical control of fluid separation by observing fluid characteristics in observation regions. The location of the regions is determined by monitoring an optical reference. Points representing edges of an optical reference are measured and lines are computed through the points. An error measurement is calculated for each line. If the error is too large, the image is abandoned. One of the lines is selected as a referent line. A new line is calculated orthogonal to the referent line. The error function is again computed for the dependant line. If the error exceeds a selected maximum, the frame is discarded. A transformation function translates data points from an (r, s) domain derived from measurements of the edges into an (x, y) domain used to identify pixels in the observation areas.

Abstract: A wearable or portable intermittently operable hydration system includes a purification module that contains one or more solid state UV devices that are positioned in the path of hydrating fluid, or water, flow through the hydration system to a mouthpiece or other orifice. The purification module provides a path for the fluid past one or more solid state UV devices, such as UV LEDs, that produce UV radiation in a germicidal range. When the fluid is flowing past the UV LEDs, the LEDs are turned on to provide sufficient UV radiation to purify the water. The UV LEDs are instant on devices with essentially no ramp-up required, and a sensor or other signaling means in to the flow path controls the turning on of the UV LEDs whenever the user initiates the fluid flow. The fluid flow path may run from a bladder in a backpack worn by the user, a sports bottle worn by or carried by the user or may be through a water filtration system that a user operates via a pump.

Abstract: A locking liquid filter assembly is disclosed that prevents an unauthorized user from removing the filter media cartridge after installation. The locking filter assembly includes a head unit for coupling with an inlet conduit for delivering unfiltered process liquid into the filter assembly and an outlet conduit for delivering filtered process liquid from the filter, a head portion that includes a manifold for communicating with the inlet conduit and with the outlet conduit, and a locking assembly coupled to the head portion configured such that when the filter media cartridge is fully engaged with the head portion, the locking assembly engages with the filter media cartridge to prevent filter media removal.

Abstract: “A jug (1) for filtering liquids, which includes a lid (3), an aperture (4) provided through the lid (3) for the filling of the jug (1), a blocking mechanism (5) mounted on the lid (3) at the aperture (4) and displaceable between a first position, in which it closes the aperture, and a second, open position, actuating means associated with the blocking mechanism (5) for urging it into the first position and allowing its passage into the second position under the action of the flow of liquid admitted into the jug (1) through the aperture (4), and a counting device (11), on the lid (3), for counting the cycles of opening and/or closure of the blocking means (5) as a result of the admission of liquid into the jug (1).

Abstract: A wearable or portable intermittently operable hydration system (10) includes a purification module (22, 50) that contains one or more solid state UV devices that are positioned in the path of hydrating fluid, or water, flow through the hydration system to a mouthpiece (18). The UV LEDs are instant on devices with essentially no ramp-up required, and a sensor (20) or the opening of a push-pull valve (53) controls the turning on of the UV LEDs. The fluid flow path may run from a bladder (12) in a backpack (19) worn by the user, a sports bottle (54) worn by or carried by the user or may be through a water filtration system that a user operates via a pump. The power for the purification module may come from batteries, solar cells, fuel cells, power converted from pumping or winding action or any combination thereof.

Abstract: An exemplary apparatus (10), for removing buoyant pollutants having oil and debris atop a body of coolant, includes a pollutant collecting device (11), a pump (12) and a controlling module (13). The pollutant collecting device includes a hollow tub (12) and a collecting module (113). The collecting module is partially received in the hollow tub and is slidable relative to the hollow tub. The pump communicates with the hollow tub. The controlling module is configured for controlling the pump to draw coolant, oil or a mixture of coolant and buoyant pollutants into the hollow tub or out of the hollow tub.

Abstract: A marine water conversion apparatus capable of pumping ocean surface water several hundred feel below the surface to cause sufficient cooler water to rise to the surface to prevent formation of or to moderate hurricanes. The apparatus is remotely controlled and includes a propulsion system for moving it to a new location or in predetermined patterns through use of a global positioning system and computerized controls. Power for driving the pumps may be provided by a wind turbine driven electric generator at the upper end of an upper tube section pivotally connected to a float tank on a vertical axis.

Abstract: A chemical treatment system that injects one or more dosage chemical solutions into a process. Conditions of the process are sensed by sensors, communicated to a chemical treatment management system. The chemical treatment management system processes the process conditions and issues command signals to one or more chemical storage systems to provide a dosage of chemical to the process. The chemical storage systems each comprise a chemical storage tank, a level sensor for the tank, a controller and a pump. The controller uses the command signals for varying in real time the dosage of the chemical solution by varying the pump operation. The chemical treatment management system also uses additional data from the chemical storage systems, such as tank level, and from other sources to provide the command signals and alerts/alarms and other user information.

Abstract: A faucet-mounted filter system that includes a body forming a fluid chamber having a water inlet, a quick connect device positioned adjacent the water inlet for mounting the filter system to a water faucet such that the water inlet is placed in fluid communication with the water faucet, a filtered water flow path disposed within the body and in fluid communication with the water inlet, an unfiltered water flow path disposed within the body and in fluid communication with the water inlet, a diverter valve disposed within the fluid chamber and operable to open and close the filtered and unfiltered water flow paths, a seal for sealing the fluid chamber, an actuator engaging the diverter valve to open and close the filtered and unfiltered water flow paths without having to interrupt the seal, a flow meter connected to the body and in fluid communication with the filter flow path, a filter housing connected to the body and having a reservoir, and a filter cartridge disposed within the reservoir.

Abstract: The invention relates to a filter device, especially a line filter forming part of hydraulic installations, said filter device comprising a filter housing (1) that can be removed from a filter head and is used to receive a filter element (5) that separates a non-filtered side (13) from a filtered side (11) in a position in the filter housing for the operation of the filter. According to the invention, the filter device is provided with a display device (19, 21) signalling the absence or presence of the filter element (5) in the filter housing (1) in the operating position.

Abstract: A locking liquid filter assembly is disclosed that prevents an unauthorized user from removing the filter media cartridge after installation. The locking filter assembly includes a head unit for coupling with an inlet conduit for delivering unfiltered process liquid into the filter assembly and an outlet conduit for delivering filtered process liquid from the filter, a head portion that includes a manifold for communicating with the inlet conduit and with the outlet conduit, and a locking assembly coupled to the head portion configured such that when the filter media cartridge is fully engaged with the head portion, the locking assembly engages with the filter media cartridge to prevent filter media removal.

Abstract: An apparatus includes: a commercial kitchen sink having a drain; a trough below the sink for transporting effluent positioned such that there is an air gap between it and the drain; and a plurality of selectively positionable markers on the trough for indicating positions for strainers to collect solids in effluent discharging form the drain. A method of removing solids from an effluent flow from a kitchen sink having a drain hole is also disclosed.

Abstract: A pool cleaning robot adapted to move in a direction along the bottom surface of a pool. The robot comprises a compass, a rate gyroscope, and a controller adapted to determine the orientation of the robot, relative to a reference orientation thereof, based on readings of the compass and the gyroscope.

Abstract: The present invention is directed generally to devices and methods for controlling fluid flow in meso-scale fluidic components in a programmable manner. Specifically, the present invention is directed to an apparatus and method for placing two microfluidic components in fluid communication at an arbitrary position and time, both of which are externally defined. The inventive apparatus uses electromagnetic radiation to perforate a material layer having selected adsorptive properties. The perforation of the material layer allows the fluid communication between microfluidic components allowing volumetric quantitation of fluids. Using the perforation of the material functionality such as metering and multiplexing are achieved on a microscale. This functionality is achieved through basic operations, like dosimeters filling, dosimeters purging, dosimeters extraction, dosimeters ventilation and channels routing.

Abstract: Embodiments of the present invention feature a device (1) and method for performing steps of a multi-step process in parallel. The device (1) and method feature a rotor assembly (13) having vessel stations (33) and stator assembly (15) having work positions. The rotor assembly (13) rotates the vessels (17) to the work stations to perform steps of a multi-step process at the same time.

Abstract: A device (10) is provided for separating magnetic or magnetizable particles from a liquid by using a magnetic field. The device includes a head piece (3) with one or more magnetizable bars (4) which is/are permanently or detachably connected with the head piece (3), as well as one or more permanent magnets (1) whose relative position with respect to the head piece can be changed by a predeterminable movement of the magnet(s) or/and by a predeterminable movement of the head piece.

Abstract: A liquid chromatographic system includes columns, column mounting fixtures to which the columns are mounted, a detector, a collector, a controller and a plurality of RFIDs. A first RFID communicates with the controller and cooperating RFIDs mounted to other components provide information such as the history of components, parameters and the like. They also receive information from sensors relating to the operation of the liquid chromatograph, store the information and transmit it.

Abstract: The present invention provides a system and method for transmitting information between a device within a housing to a second device, preferably a test or monitoring unit, outside of the housing. There are numerous issues associated with transferring information from within a sealed housing to an external device. In some cases, the use of wires inside the housing may be impractical, due to internal conditions, such as fluid flow, pressure or temperature. In one embodiment, the antenna of the external RF reading device is electrically connected to the dome of the housing. In another embodiment, the device within the housing is electrically connected to a housing component. In another embodiment, the gasket is used to pass information from within the housing to an external device.

Abstract: The present invention describes a system and method for supplying electrical power to a device, such as a filter element, located within a housing. In one embodiment, a conductive coil is embedded into the housing base, and a second coil is embedded into the filter element. Current is then passed through the coil in the housing base. Through induction, a current is created in the second coil in the filter element, in much the same way as a transformer functions. This inductive field may interfere with the operation of the various electronic functions, such as communications, sensing or other activities. To overcome this issue, an energy storage component, such as a capacitor, is included in the filter electronics. In this way, the power generated by the inductive field can be stored, and used when the inductive field is no longer present.

Abstract: This invention relates to a lid for a water filtration apparatus comprising at least one filter and to the water filtration apparatus itself. The lid comprises a counter for recording the number of times it is operated and an indicator for showing information regarding the number of times the lid has been operated. The lid can form part of a water filtration apparatus that further comprises a receptacle for receiving the water to be filtered, a container for storing the filtered water, a filtering portion that connects the receptacle and container, the filtering portion comprising at least one filter, and an outlet from the container.

Abstract: A feedback control for a polymer dispensing system, which otherwise continuously adjusts the polymer feedrate so as to keep the measured streaming current of filtrate from a sludge dewatering process at one predetermined setpoint. The feedback control includes a video camera focused on sludge as it trails behind plows on a dewatering belt, a video image processing system for converting the video signal into single numbers known as “camera readings”, and a computer programmed both to compare them with a “camera reading” setpoint and to determine whether the filtrate charge is more positive or more negative than it normally is whenever the “camera reading” deviates from its setpoint by a threshold amount. A controller, activated by the computer, incrementally resets the polymer feedrate in such a direction as to restore the normal cationic charge of the filtrate.

Abstract: Single-use long-life faucet mounted water filtration devices are disclosed. A bathroom water filtration device having two outlets for filtered water is disclosed. Additionally, a fountain head is included for use in the bathroom water filtration device. The water filtration device is of unibody construction formed by ultrasonically welding certain parts thereof together. Since the devices disclosed are disposable, no filter replacement or other maintenance is performed. A gate, magnet, sensor and electronics provide an indication of filter performance enabling disposal of the water filtration device and installation of a new device. A kitchen water filtration device is larger than the bathroom device. Both the kitchen and bathroom water filtration devices are small and are mounted behind the faucet connection so as to facilitate full utilization of the sink or wash basin.