A system and method for removing gas bubbles from fluid. An active filter apparatus forces the bubbles to the center of the filter, while a pump supplies fluid to the filter.

Methods, systems and apparatus are provided for degassing a supersaturated solution. An example degasser is described having a continuous body of gas-permeable tubing to remove an amount of a gas from the supersaturated solution below the gas's saturation point in the supersaturated solution. The degasser can be connected to at least one of a fraction collector or a detector. The example degasser is sized and/or positioned to cause a change in pressure (ΔP) across the degasser to drive removal of a dissolved gas from a supersaturated solution passing through the degasser. As a result of the reduction of gas, efficiencies in system flow and fraction collection are achieved.

Aspects of the disclosure are directed to apparatuses and methods involving filters and detection of operation thereof. As may be consistent with one or more embodiments, an apparatus includes a fixture having mechanical components that hold a filter. Gas flow componentry operates with the fixture to eject particles from the filter by subjecting the filter to gas flow. A flow metering circuit meters the gas flow, and a particulate counter detects the ejected particles.

A dust collection device (1) for removing fine particles from an atmosphere is provided with a filter (3), a blower (11), a dust removal device (7), and a pressure introduction device (9). The filter (3) removes fine particles from an atmosphere drawn into a filter chamber (5A). The blower (11) draws the atmosphere into the filter chamber (5A) and generates an air flow through the filter (3). The dust removal device (7) removes fine particles adhering to the filter (3). The pressure introduction device operates during operation of the dust removal device (7) and introduces an atmospheric pressure higher than the atmospheric pressure inside an air passage to the air passage downstream from the filter (3).

Systems and methods are provided for combined cycle power generation while reducing or mitigating emissions during power generation. Recycled exhaust gas from a power generation combustion reaction can be separated using a staged complementary swing adsorption process so as to generate a high purity CO2 stream while reducing/minimizing the energy required for the separation and without having to reduce the temperature of the exhaust gas. This can allow for improved energy recovery while also generating high purity streams of carbon dioxide and nitrogen.

Systems and methods for using pressure swing adsorption to separate and/or capture resulting emissions are provided. A stream of recycled exhaust gas is passed into a first swing adsorption reactor comprising a first adsorbent material which adsorbs CO2. An enriched N2 stream is recovered from a forward end of the first swing adsorption reactor. The pressure in the first swing adsorption reactor is reduced. The first swing adsorption reactor is purged with a portion of the first N2 stream recovered from the first swing adsorption reactor. The first purge output is passed to a second swing adsorption reactor comprising a second adsorbent material which adsorbs CO2. A second N2 stream is recovered from the second swing adsorption reactor. The pressure in the second swing adsorption reactor is reduced. The second swing adsorption reactor is purged with a steam purge.

A staged complementary pressure swing adsorption system and method for low energy fractionation of a mixed fluid. Two beds in a four-column PSA system are selective for component A, and another two columns are selective for component B. The cycle creates an intermittent A and B product, using the purge effluent from the complementary product fed at an intermediate pressure. This intermittent product is used as purge gas for low-pressure purged elsewhere in the cycle using appropriate storage tanks. The use of an intermediate pressure in this cycle enables continuous production of purified component A and B without the use of compressors. Columns may also be configured to enable pressure to equalize between complementary columns.

Methods of designing zeolite materials for adsorption of CO2. Zeolite materials and processes for CO2 adsorption using zeolite materials.

In one embodiment, a piezoelectric device is positioned adjacent to a debris fence. A resonant frequency detection circuit connects with the piezoelectric device. The resonant frequency of the piezoelectric device is responsive to debris adjacent to the debris fence.

Embodiments of the present disclosure provide for metal-organic materials (MOMs), systems that exhibit permanent porosity and using hydrophobic MOMs to separate components in a gas, methods of separating CO2 from a gas, and the like.

A vacuum filter backflushing system having an air recapturing adapter coupled to a vacuum motor's air exhaust port which recaptures a portion of exhaust air and introduces the air into a recaptured air passage. The recaptured air passage is coupled to an air flow director which is configured to direct air to an air filter. The air flow director is configured to selectively prevent air from flowing through the filters in a normal air flow direction and allow the air in the recaptured air passage to backflush the filter by dislodging particles from air filter media. The recaptured air passage can terminate after a last air filter, such that the recaptured air passage is pressurized, or the recaptured air passage can recouple back into the air exhaust port or the air recapturing adapter, such that the air is in constant motion in the recaptured air passage.

A water separator comprises an axially extending airflow passage, an airflow mixer, a plurality of electric plates of alternating charge, and a mechanical separator. The airflow mixer, the plurality of electric plates, and the mechanical separator are disposed within the airflow passage. The airflow mixer imparts a non-axial flow component on airflow through the airflow passage. The electric plates are situated downstream of the mixer, and create an electric field region within the airflow passage. The mechanical separator is situated at or downstream of the electric field region, and is disposed to separate water droplets from air.

An additive manufacturing device includes at least one liquefier assembly that receives filament material from at least one feedstock and extrudes the material in a flowable form. A thermal drying system removes water vapor and heats compressed air to a preselected temperature set point to form conditioned air. At least one enclosed filament path houses and guides the filament material from a supply to the at least one liquefier assembly. The enclosed filament path is exposed to the conditioned air from the thermal drying system so as to keep the filament material dry as it is fed to the at least one liquefier assembly.

Example embodiments include systems for use in a wellhead platform. The system may comprise a separator subsystem, a scrubber subsystem, a first stage compressor subsystem, and a second stage compressor subsystem. The separator subsystem may comprise a separator inlet section for receiving multi-phase raw mixtures, a separator container body for housing the received multi-phase raw mixture, and a separator gas outlet section for separating gas. The scrubber subsystem may comprise a scrubber inlet section connected to the separator gas outlet section, a scrubber container body, and a scrubber gas outlet section for separating gas. The first stage compressor subsystem may be operable to receive gas separated from the scrubber subsystem, compress the received gas, and output the compressed gas. The second stage compressor subsystem may be operable to receive compressed gas from the first stage compressor subsystem, further compress the received compressed gas, and output the further compressed gas.

Systems and methods for selectively extracting hydrogen gas dissolved in oil are provided. In one embodiment, a system includes a selectively permeable membrane provided at a point of contact between oil and a sensor chamber. The selectively permeable membrane has a hydrogen specificity and a thickness selected to minimize detection of further gasses dissolved in the oil by a hydrogen gas sensor cross-sensitive to the further gasses. The selectively permeable membrane can include polyimide. The further gasses include carbon monoxide, acetylene, and ethylene. The system can include a further membrane and a porous metal disc. The porous metal disc is bound to the selectively permeable membrane by using the further membrane as an adhesive layer and by applying pressure and temperature. The porous metal disc supports the selectively permeable membrane and the further membrane against pressure of the oil when exposed to a vacuum. The further membrane includes fluorohydrocarbons.

Centrifugal air separators, systems including the same, and methods of separating gas are disclosed. Centrifugal air separators include a separation section configured to separate an input air stream into a clean air stream emitted from an exit port of the separation section and a waste stream emitted from a waste port of the separation section. The separation section includes a coiled duct and is configured to transmit through a duct entrance port a duct input air stream that is at least a portion of the input air stream and to at least partially separate the duct input air stream according to a molecular weight of gaseous components of the duct input air stream into a duct clean air stream that is at least a portion of the clean air stream and a duct waste stream that is at least a portion of the waste stream.

A compressed air drying device that dries compressed air discharged from a compressor includes a dryer and a controller. The dryer includes a drying container, which is filled with a desiccant, and a discharge valve arranged in a discharge port that discharges drainage produced by regeneration of the desiccant. The controller obtains an ambient temperature and controls opening and closing of the discharge valve. When the ambient temperature is a temperature at which freezing occurs, the controller moves the compressed air, which is discharged from the compressor and heated, into the dryer and restricts opening of the discharge valve.

The present invention relates to a column (1) for thermal treatment of fluid mixtures, having a cylindrical, vertically aligned column body (2) which forms a column cavity (3), having a sequence of vertically spaced-apart dual-flow mass transfer trays (8) which are mounted in the column cavity (3) and which have orifices for passage of liquid and gas in countercurrent, and having at least one gas entry orifice (5) disposed below the lowermost of the sequence of dual-flow mass transfer trays (8). It is a characteristic feature of the column of the invention that a gas distribution tray (9) which is disposed between the lowermost of the sequence of dual-flow mass transfer trays (8) and the gas entry orifice (5) has orifices (32) for vertical passage of gas which can be introduced into the column cavity (3) via the gas entry orifice (5), the orifices (32) being formed so as to bring about equal gas distribution over the column cross section. The invention further relates to a process for thermal treatment of fluid mixtures in such a column (1).

The invention relates to a facility for purification by adsorption of gaseous flow comprising at least one impurity which has a corrosive effect on carbons steel, comprising a radial adsorber comprising a housing with an outer envelope made of carbon steel; a vertical perforated inner grating consisting of a corrosion-resistant material, a vertical perforated outer grating, an adsorbent which is held vertically by the outer grating and the inner grating, and allows at least partial blockage of the corrosive impurity, and a means for allowing a centrifugal circulation of the gaseous flow.

An apparatus and method for flow management and CO2-recovery from a CO2 containing hydrocarbon flow stream, such as a post CO2-stimulation flowback stream. The apparatus including a flow control zone, a gas separation zone, a pretreatment zone, and a CO2-capture zone. The CO2-capture zone is in fluid communication with the pretreatment zone to provide CO2-capture from a pretreated flowback gas stream and output a captured CO2-flow stream. The CO2-capture zone includes a flow splitter to direct a first portion of the pretreated flowback gas stream to a CO2-enricher to provide an enriched CO2-stream for mixing with a second portion of the pretreated flowback gas to form a mixed stream. The CO2-capture zone further includes at least one condenser to output the captured CO2-flow stream.

A carbon dioxide separation and capture apparatus includes an absorption tower configured to cause an absorbing liquid to absorb a carbon dioxide gas contained in a process gas and a regeneration tower configured to cause the absorbing liquid from the absorption tower to release the carbon dioxide gas. The carbon dioxide separation and capture apparatus further includes an inlet concentration meter configured to measure concentration of an acid component in the process gas supplied to the absorption tower and an outlet concentration meter configured to measure concentration of the acid component in the process gas discharged from the absorption tower. Also included in the carbon dioxide separation and capture apparatus are a supplementary absorbing liquid supply mechanism configured to supply a supplementary absorbing liquid to the main unit and a controller configured to control an amount of the supplementary absorbing liquid supplied to the main unit by the supplementary absorbing liquid supply mechanism based on the concentrations of the acid component measured at the inlet concentration meter and the outlet concentration meter.

A ductless fume hood suitable for the removal of various chemical materials including toxic and non-toxic gases, vapors, particles, dust and unpleasant odors from a fluid stream. The ductless fume hood uses electronic devices and software to enable real time monitoring of gas levels in parts per million.

A carbon filter is disclosed. Such a carbon filter includes a carbon-based core having a central cavity, a layer of a polymer-based filter material surrounding the carbon-based core, and at least one end cap fixedly attached to the carbon-based core.

A carbon dioxide capture and release method of forming a MOF matrix material including at least one metal-organic-framework crystal that includes at least one metal ion or metal ion cluster coordinated to polydentate organic ligands. The method includes forming a positive moisture swing CO2 host by application of at least a portion of the MOF matrix material to at least a portion of a good, and exposing the good to a feed gas. The method also includes altering the absorption and desorption of CO2 in the CO2 host through a swing absorption/desorption process of moisture content, where an equilibrium pressure of CO2 over the CO2 host is based at least in part on the moisture content. The metal-organic-framework crystal can be UIO-66 including Zr6O4(OH)4(CO2)12 clusters linked by terephthalate acid ligands, and/or Zr6O4(OH)4(CO2)12 clusters linked by amino-terephthalic acid ligands, and/or Zr6O4(OH)4(CO2)12 clusters linked by nitro-terephthalic acid ligands.

The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises one or more polyhydric alcohol. Said polyhydric alcohol preferably has a hydroxyl content equal to or greater than 31 percent and equal to or less than 75 percent of the formula weight of the compound. Said polyhydric alcohol dehydration compositions are particularly suitable for dewatering and desalting gas stream comprising water and one or more salt.

A toilet closure apparatus mounts on a toilet having a base assembly defining a bowl and a bowl ledge, a tank assembly, a toilet lid and a toilet seat. A tank mounting bolt has a tank mounting bolt bore extending axially therethrough. A cable housing is sealedly affixed within the tank mounting bore and disposed to allow a cable to move axially through the tank mounting bore. A hinge assembly includes a frame defining a downwardly extending cable run and an internal cavity including a cylindrical bearing surface having a horizontally extending axis. A hinge member is supported by the bearing surface for rotation about the axis. A hinge pin extends outwardly of the frame, and is fixedly engaged with the toilet seat to effect toilet seat rotation in common with rotation of the hinge member about the axis, the hinge member having at least one camming surface.

A waste water insert has a wall surrounding a vertical bore. A horizontal flange extends outwardly from the upper end of the wall and has a lip formed on its outer periphery. The horizontal flange of the waste water insert is super-imposed over the horizontal flange of a waste water strainer located in a bathtub, sink or the like. The wall of the insert extends downwardly through the cylindrical wall of the waste water strainer with the two walls being spaced from each other by virtue of the cylindrical wall of the insert having a smaller diameter than that of the strainer.

A flush driving device for a toilet includes a mounting bracket, a control panel that includes a sensing window and manual buttons, and a manual operating mechanism that includes bars cooperating with the manual buttons and rotating mechanisms connected with the bars. Rotating shafts of the rotating mechanisms are mounted in the mounting bracket. An automatic operating mechanism includes a driving motor, a rod controlled by the driving motor, and lifting mechanisms cooperating with the rod. The flush driving device also includes pull arms connected to both the rotating mechanisms and the lifting mechanisms for controlling the flush of the toilet.

A system for flushing a vacuum toilet in an aircraft, with a bowl drain for removing toilet waste water from a bowl, a drain line, a bypass flow line for feeding-in air, a drainage valve and a waste water line. The bowl drain and the bypass flow line are connectable to the drain line, and the drainage valve on the input side is connectable to the drain line, and on the output side is connectable to a waste water line. In an implementation of the vacuum toilet as a vacuum urinal, the system may provide either water flushing or waterless flushing.

A selectively removable and foldable hot tub seat system that is movable to provide additional free area with the hot tub such as when aquatic exercise is desired in the hot tub, and yet can be readily returned into position for seating when a more relaxing use of the hot tub is desired. The foldable hot tub seat system also includes a seat that has an adjustable height, allowing for use by users of differing heights and/or seat height preferences. The hot tub seat system does not require any mounting hardware and may be installed, removed, and adjusted without requiring any tools.

A clamping device for mounting a sink to a counter, includes a clamp having a clamp body and a binding tab, a binding post for insertion through a first opening in the clamp body and into a hole in a surface of the sink adjacent to a clamped article, the clamp and binding tab connected to the post and extending away therefrom at least partially over an edge of the clamped article, and a clamp screw for insertion through a second opening in the clamp body and against a solid portion of the binding tab interposed between the clamp screw and the edge of the clamped article.

A waste water insert has a wall surrounding a vertical bore. A horizontal flange extends outwardly from the upper end of the wall and has a lip formed on its outer periphery. The horizontal flange of the waste water insert is super-imposed over the horizontal flange of a waste water strainer located in a bathtub, sink or the like. The wall of the insert extends downwardly through the cylindrical wall of the waste water strainer with the two walls being spaced from each other by virtue of the cylindrical wall of the insert having a smaller diameter than that of the strainer.

A splash guard designed to protect the gap between the back of a sink and the adjoining wall or mirror. The guard has an upper edge and a lower edge. There upper edge is attached to the mirror, preferably through the use of suction cups. The lower edge is provided with a bendable bar which a user can bend—using hand strength—into any desired shape. The bendable bar is bent into a shape which conforms the lower edge of the guard to the posterior sink geometry. The lower edge is then placed immediately behind the posterior sink geometry.

The present invention is an air evacuation apparatus that prevents the accumulation of air inside a swimming pool or spa filter by allowing any air to be removed from inside the filter every time the swimming pool pump is turned on. By allowing air to be removed from the filter, the present invention prevents the build-up of dangerous levels of potential energy caused by compressed air inside the filter that can lead to the violent separation of the filter. More important, the air evacuation apparatus of the present invention allows air to be safely and automatically removed from inside of the filter without interfering with the functionality of the filter.

Methods and apparatus for controlling odors in an enclosed space, such as a pit latrine, include providing an oxidizer, such as a catalytic heater and an optional mechanical ventilation unit, such as an inline fan, both flow connected to a vault (pit) of the latrine. The heater is also connected to a source of fuel, for example, propane. Fresh air is drawn through vents in the latrine housing and thereafter through toilets in the latrine and through the vault, providing oxygen for the reaction. The fan and/or oxidation process draws both fresh air and accompanying odorous compounds directly from the latrine and into the oxidizer wherein the odorous components are substantially destroyed.

A sewer gas odor absorption apparatus for a manhole having a perforate manhole cover disposed in the manhole which includes an imperforate housing having a seal dimensioned and configured for sealing engagement with the manhole, the housing has a first extremity and a second extremity and a passageway in fluid communication with ambient air above the manhole cover at the first extremity and in fluid communication with sewer gases at the second extremity thereof. A sub-assembly including a porous absorption media and a variable volume device disposed in mutual fluid communication in a subassembly having first and second axial extremities, the first and second extremities of the subassembly being disposed in fluid communication respectively with the first and second extremities of the imperforate housing.

A brace for a wall-mounted toilet, particularly useful for wall-mounted porcelain toilets in hospitals and other health care facilities. The brace a weight receiving structure supported by cantilevered struts that attach the brace to the wall, preferably using the same bolts that attach the toilet to the wall. The weight receiving structure may be seat portion that overlies the rim of the toilet bowl, so that the weight of the user is transmitted from the toilet seat to the seat structure and then to the walls through the struts. Alternately, the weight receiving structure may include an under-bowl support that extends underneath the toilet bowl so that the user's weight is transmitted from the bowl to the wall through the struts. Thus, the cantilevered brace increases the weight-bearing capacity of the wall-mounted toilet. A plastic shroud may be included for enclosing the brace and toilet bowl.

The drain strainer and filter is removably placed within a sink, tub, or other drain to prevent solid particles from passing through the drain and building up to block the drain at some inaccessible location. The device includes a perforated basket having a removable perforated lid. The basket and lid enclose a removable and disposable filter element therein. The drain strainer may have a retractable stopper extending therebelow, the stopper being actuated by a lift rod that extends through the basket, filter, and lid. The handle of the lift rod may be removed to allow the lid and the filter to be removed from the basket. Alternatively, the drain strainer does not include the stopper. The drain strainer includes a folding handle. The lid includes a recess to allow the handle to fold flush with the top of the lid to avoid interference with articles in the sink during use.

There is provided a flush toilet device capable of being configured in a compact size and supplying a sufficient flow amount of water to a toilet to reliably flush and discharge waste. According to the flush toilet device, a straight pipe portion of a throat which is arranged inside a tank is arranged in a state where a center axis thereof inclines with respect to a front-back direction of the tank when viewed from an upper side.

The device has a line arrangement (2), which possesses an inlet (3) connectable to a supply line and an outlet (4) connectable to a shower arm (5). A heating element (6) serves for the provision of warm water. An energy store (7, 8) is provided, with which the power range for the provision of shower water can be extended. The heating element (6) for the provision of warm water is, in particular, a continuous-flow heater. The energy store (7, 8) is, in particular, a thermal, electrical, electrochemical or chemical energy store. During the shower process, the energy store is available as an additional energy source for the preparation of shower water.

A lavatory pan device for separating stool and urine includes a stool and urine tray, a supporting device, and a moment force producing device. The stool and urine tray consists of a flat plate and the rib inclining upward and extending outward from the whole or partial edge of the flat plate. The lavatory pan has an opening or an entry way at the longitudinal side and is connected on the supporting device. Through the moment force produced by the prescribed moment force producing device, the stool and urine tray can roll over on the supporting device. The described moment force producing device is set on the stool and urine tray and it is between tow supports of the above supporting device and the opening or entry way.

A pool cover for above ground swimming pools includes a cover with an elevated central area, a plurality of rods to support the cover, and a plurality of clip assemblies to couple the rods to the swimming pool. The cover is a waterproof textile having a plurality of sleeve members allowing for insertion of the support rods to secure and support the cover. Each clip assembly includes hook which removably attaches to an upper perimeter edge of the pool and a pocket to receive an end of the support rod. When assembled, the support rods form a dome-like structure circularly arranged about the edge of the pool.

The invention relates to a drain (1'), in particular for floor level showers, the drain comprising a pot shaped drain housing (1.1) including a shell or pot shaped base component (1.2) without a pipe connection, a laterally disposed pipe connection (1.5) and an inlet opening (1.3) at a top side of the base component, and an immersion pipe (2) which is insertable into the drain housing through the inlet opening (1.3) and defines a stench trap with the drain housing. In order to be able to adapt such a drain to various installation conditions in a flexible manner, so that the installation height, water lock height and drain output of the drain is variable, the invention provides a solution wherein the base component (1.2) is connected in an elevation-adjustable and liquid-tight manner with the drain housing (1.1).

The invention provides a flush free drain trap system. The trap of the invention may be used in any trap system intended to block a back flow of odors from the waste line. A sealant liquid floats on top of the waste liquid in the trap to block odors. The trap uses one passageway to pass liquids to the sewer line, similarly to a conventional drain system, for preventing overflow and allowing cleaning. A second passageway allows the trap to dispose of small amounts of the waste liquid though an opening and a valve operated by the buoyancy caused by the accumulation of waste liquid in the trap. In normal use, waste liquid is passed to the sewer line without loss of sealant liquid. Furthermore, the performance of the trap is not affected by the evaporation of the waste liquid when the trap is unused.

Various embodiments of a device for regulating a fluid flow are described that can include first and second downwardly-sloping valves that are biased in a closed position to prevent odors from escaping the device. The device can also include first and second downwardly-sloping valve seats, and configured such that an end portion of the first valve can be seated beneath the first valve seat and an end portion of the second valve can be seated beneath the second valve seat when the first and second valves are in a closed position, respectively.

A toilet training device includes an odor remediation system for absorbing or masking odors that may be created during toilet training. The odor remediation system may include a modular odor remediating insert that may be releasably positioned within a recess that is provided within the toilet training device. The odor remediating insert may include an odor absorbing substance such as sodium bicarbonate, an odor masking substance such as a fragrance or a combination of an odor absorbing substance and an odor masking substance. The toilet training device also includes a system for dispensing wipes that may utilize a recess that is defined in a side wall of the main body portion of the toilet training device. A wipes cartridge is designed so that it can be used to conveniently dispense wipes regardless of whether it is separated from the toilet training device or mounted within the recess of the toilet training device.

Provided is a pool spring cover having an elongate tubular member with openings on first and second sides, respectively. The first and second sides span a longitudinal axis. An attachment member extends generally along the longitudinal axis from a first portion of the second side to a free end. A fastener comprised of a first fastener element and a second fastener element is provided. The first fastener element is associated with the attachment member at the free end and the second fastener element is associated with the tubular member at a second portion of the second side. The first and second fastener elements are adapted to fasten to each other such that the attachment member forms a loop. The first fastener element and the second fastener element may form a one-time use fastener. Also provided are related systems and methods.

Provided is an automatic head care system and an automatic hair washing system for caring a person's head in a safe and effective manner without applying a straining force on the person's neck. In order to achieve the object, the following steps are performed in turn: a head receiving step in which a pair of arms 114L, 114R are placed at positions for receiving a person's head 10 on a suppotring body 112; a water washing step in which water ejected from a plurality of nozzles 110 is poured to the head 10 while the pair of arms 114L, 114R are swung; a shampoo step in which washing liquid ejected from the plurality of nozzles 110 is poured to the head 10 while the pair of arms 114L, 114R are swung; and a head care step in which the head 10 is cared by performing the push-rotating of the pair of arms 114L, 114R in the direction of approaching the head 10 so as to bring the plurality of contacts 109 into contact with the head 10 and by swinging the pair of arms 114L, 114R while moving the plurality of contacts 109.

A shower door assembly with an integral directional draining system including a shower door frame having a frame body defining a horizontal drain channel and a plurality of drain holes, at least one side panel having a first end and a second end, the first end of the side panel being sized and configured to be fixedly attached to the frame body and the second end of the side panel further including a hinge mount, and at least one door defining a hinge mount rotatably connected to the hinge mount of the side panel and a door drain channel, the door having an upper portion and lower portion. The door of the present invention flares upward and bows outward such that the upper portion of the door is farther away from the shower door frame than the lower portion of the door.

A flush valve assembly having a handle assembly positioning bushing for spacing a handle assembly within an opening of the flush valve assembly. The handle assembly positioning bushing having an eccentric opening for receiving the handle such that rotation of the handle assembly positioning bushing with regard to the flush valve assembly body alters the height of the handle assembly and, thus, the volume of water passing through the flush valve assembly during a flush cycle.