A blend valve assembly including a plurality of ports, a stator having at least one fluid flow path defined therein that extends between at least one port of the plurality of ports in communication with the primary fluid media and at least one port of the plurality of ports in communication with an intake of a testing device, and a rotor comprising at least one fluid flow path defined therein. The rotor is movable between a series of positions such that the blend valve assembly is operable to provide the intake of the testing device with only the primary fluid media and to provide the intake of the testing device with a blend of the primary fluid media and the secondary fluid media.

A directional control valve having low or no interflow, minimal parts, and configured for easy repair, is provided. In one embodiment, a seat is slidingly sealably movable with respect to opposed plates, such that an inlet in one of the plates communicates with an internal volume of the seat, and by selectively positioning the seat with respect to one or more outlets in a second of the opposed plates, the inlet can be placed in communication with an outlet, or isolated from the one or more outlets.

A self-draining transmitter mount head includes a head body with a transmitter process coupling port in the head body, an impulse port in the head body, and an impulse passage coupled to the impulse port. An impulse drain passage is coupled between the pressure transmitter port and the impulse passage. The impulse drain passage is positioned at an angle to the impulse passage, and relative to a head installation angle that positions the impulse drain passage to drain away from the transmitter process coupling port through a range of head installation angles.

A boiler loop system including a primary-secondary piping loop interface apparatus including a flow diversion device, and a drain valve, and a drain port in branches from a circumferential sidewall. In an embodiment, supply branch piping and return branch piping connect the primary-secondary piping loop interface apparatus to a boiler and provide attachment points for auxiliary plumbing equipment. In an embodiment, the boiler loop is integrated into the primary loop.

Systems, apparatus and methods for providing air and water to hot tub jets. The present teachings include jet assemblies, manifold assemblies, and related components, as well as methods of assembling hot tubs involving these components. In some cases, the present teachings describe the use of dual extrusion tubing to route air and water through adjacent, connected fluid conduits. In some cases, the present teachings describe a press-and-click method of connecting various components.

An adapter for a pool cleaning system is provided. The adapter includes a base member having a top and a bottom surface. The adapter also includes six upper ports coupled to the top surface of the base member, each upper port including an upper aperture extending through the upper port and through the base member. The adapter further includes five lower ports coupled to the bottom surface of the base member, each lower port including a lower aperture extending through the lower port and through the base member. In some embodiments, four of lower ports are in fluid communication four of the upper ports and one of the lower ports is in fluid communication with two of the upper ports.

Improved valve assemblies (e.g., multi-position valve assemblies) are provided. More particularly, the present disclosure provides for high efficiency multi-position rotary backwash valve assemblies. In exemplary embodiments, the present disclosure provides for a four-position rotary high efficiency valve assembly for a swimming pool or spa filter. The present disclosure provides multi-position valve assemblies having infrequent maintenance and allowing for user-friendly service. The present disclosure provides for improved multi-position valve assemblies and related features, systems and methods of use. Improved, convenient and effective systems and methods for utilizing improved multi-position valve assemblies (e.g., high efficiency multi-position rotary backwash valve assemblies) are provided. The valve assembly can be utilized in fluid systems as a flow control assembly (e.g., as a backwash valve associated with a pool or spa filter).

An ER fluid valve includes a housing and a plurality of parallel flow passages through the housing each defined by spaced electrodes at least one of which is controllable independently of other flow passages electrodes. A controller is configured to selectively establish electrical fields for all of the independently controllable electrodes to close all of the flow passages to ER fluid flowing through the housing. By removing the fields from all of the independently controllable electrodes, all the flow passages are open to the ER fluid flowing through the housing. By establishing fields for select independently controllable electrodes to close their associated flow passages and by leaving other flow passages open, restricted flow of the ER fluid through the housing is accomplished to vary the flow rate through the housing.

The faucet apparatus arranged inside a counter along a wall surface can be made thin in a height direction, and the counter can be made thin in the height direction. The faucet apparatus 1 includes a cold water supply pipe 6 supplying cold water, a hot water supply pipe 8 supplying hot water, a water temperature control function unit 10 capable of mixing hot water and cold water, and a flow path 14 extending from the water temperature control function unit. The flow path 14 forms a flow path crossing part 40, 240 crossing with at least any of at least the cold water supply pipe 6, the hot water supply pipe 8 or a downstream side flow path 220 on a downstream side of the outflow path while distinguishing respective inner flow paths from each other.

Systems, apparatus and methods for providing air and water to hot tub jets. The present teachings include jet assemblies, manifold assemblies, and related components, as well as methods of assembling hot tubs involving these components. In some cases, the present teachings describe the use of dual extrusion tubing to route air and water through adjacent, connected fluid conduits. In some cases, the present teachings describe a press-and-click method of connecting various components.