The plug for a drain collects debris before the debris can enter the plumbing. The plug includes an outer rim; a conical core having a top cone end and a bottom core end opposite the top cone end; a cone cover being placed at the top cone end; and a plurality of cone ridges extending from the cone cover and toward the outer rim. The conical core has a conical surface with an inner side and an outer side opposite the inner side, a plurality of flow holes, and a plurality of strainer holes. Each cone ridge has a top cone ridge end larger than a bottom cone ridge end so as to form a collection ring portion on the conical surface. The conical core can have a plurality of protrusions extending outward. Debris can be collected by the protrusions at the strainer holes and at the collection ring.

A sink including a body defining a vessel volume having an interior surface, wherein the body includes a bowl, where the bowl includes a base wall and at least one side wall extending from the base wall, where the bowl at least partially defines the interior surface, and a cup, where the cup includes a strainer plate defining one or more apertures therein and at least one side wall, where the cup at least partially defines the interior surface, where the body is formed from a single continuous piece of sheet material, and where the minimum thickness of the material forming the cup is no less than 50% of the maximum thickness of the material forming the bowl.

A sink including a body defining a vessel volume having an interior surface, wherein the body includes a bowl, where the bowl includes a base wall and at least one side wall extending from the base wall, where the bowl at least partially defines the interior surface, and a cup, where the cup includes a strainer plate defining one or more apertures therein and at least one side wall, where the cup at least partially defines the interior surface, where the body is formed from a single continuous piece of sheet material, and where the minimum thickness of the material forming the cup is no less than 50% of the maximum thickness of the material forming the bowl.

A removable drain includes a grill grate including at least one aperture and at least one grill grate first fastener opening configured to receive a first fastener, and a support flange configured to support the grill grate and configured to be coupled to an existing drain, the support flange having a central opening and including a recessed flange extending into the opening from an interior wall for the support flange and on which the grill grate can be accommodated, at least one first support flange fastener opening configured to receive the first fastener, and at least one second support flange fastener opening configured to receive a second fastener, wherein the grill grate is configured to be detachably coupled to the support flange by the first fastener and wherein the support flange is configured to be detachably coupled to an existing drain structure by the second fastener.

A removable drain includes a grill grate including at least one aperture and at least one grill grate first fastener opening configured to receive a first fastener, and a support flange configured to support the grill grate and configured to be coupled to an existing drain, the support flange having a central opening and including a recessed flange extending into the opening from an interior wall for the support flange and on which the grill grate can be accommodated, at least one first support flange fastener opening configured to receive the first fastener, and at least one second support flange fastener opening configured to receive a second fastener, wherein the grill grate is configured to be detachably coupled to the support flange by the first fastener and wherein the support flange is configured to be detachably coupled to an existing drain structure by the second fastener.

A drain strainer includes a base body defining a chamber with opposite water inlet and water outlet, a straining unit disposed in the chamber, and a cover unit including a cover body connected to the straining unit. The straining unit includes a bottom straining member having a plurality of bottom straining holes, and a main straining member disposed on one side of the bottom straining member and including a main straining surrounding wall formed with a plurality of spaced-apart main straining holes. The bottom and main straining holes communicate with each other and with the chamber.

A drain strainer includes a base body defining a chamber with opposite water inlet and water outlet, a straining unit disposed in the chamber, and a cover unit including a cover body connected to the straining unit. The straining unit includes a bottom straining member having a plurality of bottom straining holes, and a main straining member disposed on one side of the bottom straining member and including a main straining surrounding wall formed with a plurality of spaced-apart main straining holes. The bottom and main straining holes communicate with each other and with the chamber.

A combination strainer and drain stop assembly or tamper-resistant flow control device includes a strainer body or housing; a rotatable stopper disk; a lock; and a screw extending through central apertures in the assembly. The strainer body includes a strainer disk with a planar surface and slotted openings. The slotted strainer housing has arcuate slots and a pair of diametrically opposed apertures. The stopper/flow control disk has lugs protruding through the slots and rotate the disk between an open position and a closed position. The lock includes a rectangular lock block housing a lock pin at each end and a truncated wedge. The wedge has ramp faces and a cylindrical threaded insert. The screw raises the wedge into the block when pivoted so that the pins extend through the apertures and the device is secured within a drain.

Systems, methods, and techniques for cleaning sinks and dishes are provided. In some embodiments, a cleaning system comprises at least one fluid supply, at least one opening in a side wall of a sink basin, and at least one nozzle positioned along an exterior of the sink basin. The nozzle is configured to receive fluid from the fluid supply, and dispense fluid through an opening in a side wall of the sink basin to an interior surface of the sink basin. In some embodiments, the nozzle is configured to dispense fluid to the interior of a sink basin, such that substantially all surfaces of the interior of the sink basin are covered with a thin layer of fluid. In some embodiments, nozzle dispensing angle, duration of a cleaning cycle, flow rate or amount of dispensing fluid, or activation of a cleaning cycle may be manually or automatically controlled.

A tarp or sheet attached to the wide end of a conical funnel designed to fit snuggly in a drain to provide a protective barrier for a sink when cleaning paint brushes and roller covers. The conical funnel may contain a grated filter inside to catch paint clots that would otherwise clog the sink or damage the garbage disposal.