A method for releasably securing a sink strainer in a drain hole of a sink by providing a lock nut having a split defined by a pair of opposed surfaces and a locking system comprising a pair of opposed tabs attached to the outer surface of the lock nut with one tab on one side of the split having a threaded hole spaced perpendicularly with respect to the opposed surfaces for receiving a threaded fastener and a second tab attached to the outer surface of the lock nut on the opposite side of the split in opposed spaced relationship to the first tab. The second tab having a hole in axisymmetric spaced relationship to the threaded hole with a diameter of sufficient size to allow a threaded fastener to pass therethrough, and a threaded fastener positioned within the axisymmetric spaced hole and arranged to pass through the hole in the second tab and securely engage the threaded hole in the first tab. When engaged, the threaded fastener holds the opposed surfaces in mating relationship during normal use, and when removed, provide for the lock nut to release from its position in response to application of an external force.

An air conditioner coil drain line unclogging apparatus for clearing a clogged coil drain line includes an inlet connection configured to attach to an air conditioner coil drain line. A ball valve is coupled to the inlet connection and has a handle coupled to a ball to block and alternatively unblock flow through the inlet connection. A first extension tube is coupled to the inlet connection. A T-fitting has a second inlet end coupled to the first extension tube, a second outlet end, and a perpendicular third inlet end extending between the second inlet end and the second outlet end. The second outlet end is configured to attach to a drain line. A second extension tube is coupled within the third inlet end of the T-fitting. A hose connection is coupled to the second extension and has a threaded hose end configured to selectively engage a water supply line.

An air conditioner coil drain line unclogging apparatus for clearing a clogged coil drain line includes an inlet connection configured to attach to an air conditioner coil drain line. A ball valve is coupled to the inlet connection and has a handle coupled to a ball to block and alternatively unblock flow through the inlet connection. A first extension tube is coupled to the inlet connection. A T-fitting has a second inlet end coupled to the first extension tube, a second outlet end, and a perpendicular third inlet end extending between the second inlet end and the second outlet end. The second outlet end is configured to attach to a drain line. A second extension tube is coupled within the third inlet end of the T-fitting. A hose connection is coupled to the second extension and has a threaded hose end configured to selectively engage a water supply line.

A floor sink configured to be installed in a support surface includes a body including a first end, and a second end opposite the first end and configured to receive a pipe. The floor sink further includes a cavity extending through the body, and a flange coupled to the first end of the body and extending away from the cavity. The flange is configured to engage the support surface.

This specification describes an intake filter for use, for example, in a system that collects greywater from baths or showers for re-use in toilet flushing. The intake filter provides essentially dead-end filtration. An influent by-pass may be provided, but the filter is cleaned as required to reduce use of the by-pass. Cleaning is performed when permeability of the filter declines. An upstream sensor may be used to detect the permeability of the filter. In one cleaning method, flowing water, optionally with air, is used to backwash the filter. The impulse of the flowing water also moves one or more valves to direct backwash water to a sanitary drain. For example, pumped effluent may impinge against a first flap to close an effluent drain, the first flap being mechanically linked to open a flap covering the sanitary drain.

Disclosed are various embodiments for a universal sink stopper and strainer. Various embodiments can include a handle, a plate, and a gasket. The gasket can include a first plurality of holes. The plate can include a protrusion and a second plurality of holes. The protrusion is shaped to extend through a portion of the gasket. The handle is configured to rotate to adjust an alignment of the first plurality of holes of the gasket with respect to the second plurality of holes of the plate.

Disclosed are various embodiments for a universal sink stopper and strainer. Various embodiments can include a handle, a plate, and a gasket. The gasket can include a first plurality of holes. The plate can include a protrusion and a second plurality of holes. The protrusion is shaped to extend through a portion of the gasket. The handle is configured to rotate to adjust an alignment of the first plurality of holes of the gasket with respect to the second plurality of holes of the plate.

Implementations of a garbage disposal assembly apparatus are provided. In some implementations, the garbage disposal assembly apparatus comprises a top part, an elongated member, a handle, and a support member. In some implementations, a method of using the garbage disposal assembly apparatus comprises installing a garbage disposal assembly to a sink using the garbage disposal assembly apparatus. In some embodiments, the support member includes a holding element adapted to hold a portion of a garbage disposal assembly during the installation process.

A ligature resistant strainer for a drain assembly and connecting to a drain system. The strainer includes a grate and an extension block coupled to the grate. The grate defines a first thickness, and the extension block defines a second thickness that is greater than the first thickness. Portions of the grate cooperate with portions of the extension block to define a plurality of apertures extending through the strainer and inhibiting attachment of a ligature to the strainer.

An apparatus and methods for the separation of macroscopic solid body particles (SBPs) from a fluid stream contained in a conduit, such as a hose or pipe. The method involves utilizing a particle separator having a fluid inlet port connected to a fluid inlet conduit and a fluid outlet port connected to a fluid outlet conduit to change the direction (and optionally the velocity) of the fluid stream within a lumen of an enclosed vessel component of the particle separator sufficiently to permit SBPs to fall by gravity (and/or to descend due to inertia) into a removable receptacle within a bottom portion of the vessel component while directing the flow of cleansed fluid to the fluid outlet port of the particle seperator.