A joint device for drain pipes comprises a structural tube made of a rigid material and providing structural integrity to the joint device. The structural tube defines at least part of a drain passage of the joint device, a bottom portion of the structural tube having diametrical dimensions for complementary sealing engagement with a pipe of a drain network. An annular seal of resilient sealing material is integrally connected to an upper portion of the structural tube to define at least an inner surface of a portion of the drain passage of the joint device, the annular seal having inner diametrical dimensions for sealing engagement with a tailpiece slid downwardly into engagement with the joint device.

A removable trap for lavatory sinks is provided to enable new technologies to be incorporated into just the water trap portion of the sink trap to maximize the performance of the trap in infection control, while at the same time preserving the trap performance features demanded by major building codes. While a traditional P-trap requires the removal of the entire trap for cleaning or replacement, the removable trap presented in this application allows for easy removal of just the U-bend portion of the trap. The U-bend containing the water is the most vulnerable to attack to cleaning chemicals as well as the most effective locus of innovation in materials and methods employed to reduce infectious bacteria forming biofilms within the lavatory trap.

A removable trap for lavatory sinks is provided to enable new technologies to be incorporated into just the water trap portion of the sink trap to maximize the performance of the trap in infection control, while at the same time preserving the trap performance features demanded by major building codes. While a traditional P-trap requires the removal of the entire trap for cleaning or replacement, the removable trap presented in this application allows for easy removal of just the U-bend portion of the trap. The U-bend containing the water is the most vulnerable to attack to cleaning chemicals as well as the most effective locus of innovation in materials and methods employed to reduce infectious bacteria forming biofilms within the lavatory trap.

A plumbing connection hub for connecting household plumbing to appliances or basins is provided. The hub includes a container formed by a continuous wall and at least one open side, a tubular drain outlet leading out of the container through an operatively lower portion of the wall and the outlet being connectable to the sewage system of a house, and a drain inlet leading into the container from an open side with the tube fixed to the wall, and with the inner ends of the inlet and outlet positioned to receive a s-trap between them. The hub further includes a water connection elbow pipe locator for locating a water connection elbow pipe.

A plumbing connection hub for connecting household plumbing to appliances or basins is provided. The hub includes a container formed by a continuous wall and at least one open side, a tubular drain outlet leading out of the container through an operatively lower portion of the wall and the outlet being connectable to the sewage system of a house, and a drain inlet leading into the container from an open side with the tube fixed to the wall, and with the inner ends of the inlet and outlet positioned to receive a s-trap between them. The hub further includes a water connection elbow pipe locator for locating a water connection elbow pipe.

A removable trap for lavatory sinks is provided to enable new technologies to be incorporated into just the water trap portion of the sink trap to maximize the performance of the trap in infection control, while at the same time preserving the trap performance features demanded by major building codes. While a traditional P-trap requires the removal of the entire trap for cleaning or replacement, the removable trap presented in this application allows for easy removal of just the U-bend portion of the trap. The U-bend containing the water is the most vulnerable to attack to cleaning chemicals as well as the most effective locus of innovation in materials and methods employed to reduce infectious bacteria forming biofilms within the lavatory trap.

A removable trap for lavatory sinks is provided to enable new technologies to be incorporated into just the water trap portion of the sink trap to maximize the performance of the trap in infection control, while at the same time preserving the trap performance features demanded by major building codes. While a traditional P-trap requires the removal of the entire trap for cleaning or replacement, the removable trap presented in this application allows for easy removal of just the U-bend portion of the trap. The U-bend containing the water is the most vulnerable to attack to cleaning chemicals as well as the most effective locus of innovation in materials and methods employed to reduce infectious bacteria forming biofilms within the lavatory trap.

According to one aspect of the present disclosure, a plumbing drain assembly is disclosed which includes a plumbing outlet box, a Y connector, and an air intake valve. The plumbing outlet box has a back wall and four sidewalls that extend outward from the back wall to form a cavity. The Y connector includes a first and second drain channels. The first drain channel is mounted in the cavity and has opposing first and second ends. The second drain channel merges with the first drain channel between the first and second ends. The air intake valve is mounted to the first end of the first drain channel, and is configured to allow exterior air to enter into the first drain channel through the first end, and prevent internal air from exiting the first drain channel through the first end.

According to one aspect of the present disclosure, a plumbing drain assembly is disclosed which includes a plumbing outlet box, a Y connector, and an air intake valve. The plumbing outlet box has a back wall and four sidewalls that extend outward from the back wall to form a cavity. The Y connector includes a first and second drain channels. The first drain channel is mounted in the cavity and has opposing first and second ends. The second drain channel merges with the first drain channel between the first and second ends. The air intake valve is mounted to the first end of the first drain channel, and is configured to allow exterior air to enter into the first drain channel through the first end, and prevent internal air from exiting the first drain channel through the first end.

An anti-backflow plumbing fitting (10, 102) includes an inlet end (16, 108) with a body inlet fitting (20, 118) that is in fluid communication with an inlet passage (40, 122) and an outlet end (18, 110) with a body outlet fitting (30, 144) that is in fluid communication with an outlet passage (48, 152). The body bounds an interior area (36, 106). An axially elongated air gap opening (56, 114) extends through the cylindrical body wall. A further passage (62, 134) extends from outside the body to an internal passage opening (66, 138) that is in an opposed radial direction from the air gap opening. The air gap opening operates to reduce the risk that contaminated liquid may back up into the interior area and reach the inlet passage. A cylindrical outlet end outside wall portion (28) enables the body to be engaged in fluid tight relation with a liquid removal conduit (80). A cylindrical inlet end outside wall portion (26) enables the body to be engaged in fluid tight relation with a liquid delivery conduit (82).