A vacuum breaker having a supporting rib and a skirted section is disclosed. The supporting rib is configured to be axially aligned with air slots in an outlet tube and provide a more robust vacuum breaker sleeve under extreme operating conditions. The skirted section can prevent leakage through air slots during high back pressure operating conditions.

A drain trap facilitates resilient compression of a flexible trap section while blocking the simultaneous reverse flow of water out of the fixture inlet drain. The trap section may be manually squeezed or otherwise manipulated to dislodge unwanted materials clogging the trap section. The wall thickness of the trap section may be thinned-down and/or composed of a rubber or rubber-like elastomer or other compressible material to facilitate squeezing of the trap section. A one-way or check valve disposed in the fluid inlet section permits fluid to flow into the fluid inlet section and through the trap section, while preventing back flow from the trap section and into the fluid inlet section as the trap section is manually squeezed. The one-way or check valve may be a ball valve. The trap section may include a non-smooth or textured outer surface to assist a user in gripping and squeezing the trap section.

A drain trap facilitates resilient compression of a flexible trap section while blocking the simultaneous reverse flow of water out of the fixture inlet drain. The trap section may be manually squeezed or otherwise manipulated to dislodge unwanted materials clogging the trap section. The wall thickness of the trap section may be thinned-down and/or composed of a rubber or rubber-like elastomer or other compressible material to facilitate squeezing of the trap section. A one-way or check valve disposed in the fluid inlet section permits fluid to flow into the fluid inlet section and through the trap section, while preventing back flow from the trap section and into the fluid inlet section as the trap section is manually squeezed. The one-way or check valve may be a ball valve. The trap section may include a non-smooth or textured outer surface to assist a user in gripping and squeezing the trap section.

A drain trap includes an outer part including a circumferential wall, the outer part extending in an axial direction between an outer part upper end and an outer part lower end, the outer part including outer part radial threads proximate the outer part upper end, the outer part lower end forming a well configured to trap and retain fluid, the outer part further including at least one opening disposed in the circumferential wall, an inner part, and a rounded structure retained within the well. Fluid entering the drain trap accumulates in the well, and the fluid entering the drain trap is expelled from the drain trap through the at least one opening disposed in the circumferential wall.

A drain trap includes an outer part including a circumferential wall, the outer part extending in an axial direction between an outer part upper end and an outer part lower end, the outer part including outer part radial threads proximate the outer part upper end, the outer part lower end forming a well configured to trap and retain fluid, the outer part further including at least one opening disposed in the circumferential wall, an inner part, and a rounded structure retained within the well. Fluid entering the drain trap accumulates in the well, and the fluid entering the drain trap is expelled from the drain trap through the at least one opening disposed in the circumferential wall.