Abstract: The present invention relates to a plant caddy comprising a first molded thermoplastic member having a top planar surface and a bottom surface. The bottom surface includes a plurality of downward facing wheel pedestals. The first molded thermoplastic member also includes a plurality of pocket members, each having an upper section set within the top planar surface and a lower section set within the bottom surface. Each pocket member has at least one aperture allowing a flow of thermoplastic material between the upper and lower sections. The plant caddy further includes a plurality of thermoplastic over-mold members, with each over-mold member having a first portion disposed within the upper section of a dedicated pocket and a second portion disposed within the lower section of the dedicated pocket. Additionally, the plant caddy includes a plurality of wheel members, each attached to a dedicated downward facing wheel pedestal.

Abstract: A check valve has an internal gate having an adjustable retention force, such that in the event that if the differential pressure between the upstream and downstream pressure changes, the force required to allow flow through the valve may be adjusted without removal of the valve from the piping system.

Abstract: A plastic pipe union has an integral locking mechanism which is activated when nut member of the union is sufficiently tightened to the threads of an adjoining male nipple. The nut member and the tail piece of the plastic union each have matching engagement surfaces, where each engagement surface has a scalloped profile. Once sufficiently tightened, tactile feedback is provided to a personal manually tightening the nut member, indicating that the scalloped structures of the opposing engagement surfaces have interacted and reached a locked configuration.

Abstract: A plastic pipe union has an integral locking mechanism which is activated when nut member of the union is sufficiently tightened to the threads of an adjoining male nipple. The nut member and the tail piece of the plastic union each have matching engagement surfaces, where each engagement surface has a scalloped profile. Once sufficiently tightened, tactile feedback is provided to a personal manually tightening the nut member, indicating that the scalloped structures of the opposing engagement surfaces have interacted and reached a locked configuration.

Abstract: An axially actuated drain valve for pools and spas mountable in a wall thereof. It includes a tubular body and a coaxial plunger. The body opens into the spa or pool at an inner end. The plunger has a passage opening near the outer end of its passage. A cylindrical seal engages with a seal on the plunger for a substantial range of movement to keep the valve closed. Beyond that, the plunger passage is opened for flow from the body passage opening. The plunger may have threads on its outer end to be coupled to a hose fitting.