An animal reverser device can include a housing containing a trap zone adapted to prevent animals from entering a premises via sewer-related tubing. A first tubular connection pipe can connect to drain piping and can protrude downward into the housing. An area formed around the outer surface of the first tubular connection pipe within its protrusion within the housing can create the trap zone. A second tubular connection integrated with a bottom of the housing and protruding downward from the housing can be connected to an existing drain trap or sewer line pipe that carries waste away from the premises.

An animal reverser device can include a housing containing a trap zone adapted to prevent animals from entering a premises via sewer-related tubing. A first tubular connection pipe can connect to drain piping and can protrude downward into the housing. An area formed around the outer surface of the first tubular connection pipe within its protrusion within the housing can create the trap zone. A second tubular connection integrated with a bottom of the housing and protruding downward from the housing can be connected to an existing drain trap or sewer line pipe that carries waste away from the premises.

Provided is a non-return device for a pipeline port, including a main body portion and a non-return portion. The main body portion is of a barrel-shaped structure provided with a channel, and the non-return portion is provided with a plurality of through holes, wherein the main body portion and/or the non-return portion is provided with a limiting structure, used to limit relative positions between the main body portion and the non-return portion. Provided with the limiting structure, the non-return device for a pipeline port provided by the present disclosure realizes mounting, fixation, and separation of the positions between the main body portion and the non-return portion and is conveniently disassembled and assembled. In addition, the non-return portion is not connected and fixed by arranging other connecting structures so the overall processing cost is relatively low.

Provided is a non-return device for a pipeline port, including a main body portion and a non-return portion. The main body portion is of a barrel-shaped structure provided with a channel, and the non-return portion is provided with a plurality of through holes, wherein the main body portion and/or the non-return portion is provided with a limiting structure, used to limit relative positions between the main body portion and the non-return portion. Provided with the limiting structure, the non-return device for a pipeline port provided by the present disclosure realizes mounting, fixation, and separation of the positions between the main body portion and the non-return portion and is conveniently disassembled and assembled. In addition, the non-return portion is not connected and fixed by arranging other connecting structures so the overall processing cost is relatively low.

A waste hose seal apparatus provides a rodent and pest barrier into the service compartment of a recreational vehicle. The apparatus includes a seal assembly having a first section which snaps into place within the circular opening of the access port into service compartment, the seal assembly remaining in place by an interference fit between a circumferential edge surface of the seal assembly and an inside edge of the access port bushing. The seal assembly may also have an interior section having a domed configuration with an oculus defined by an inside edge surface configured to seal against an outside facing surface of the waste disposal hose.

A waste hose seal apparatus provides a rodent and pest barrier into the service compartment of a recreational vehicle. The apparatus includes a seal assembly having a first section which snaps into place within the circular opening of the access port into service compartment, the seal assembly remaining in place by an interference fit between a circumferential edge surface of the seal assembly and an inside edge of the access port bushing. The seal assembly may also have an interior section having a domed configuration with an oculus defined by an inside edge surface configured to seal against an outside facing surface of the waste disposal hose.

A method and system that operates to capture improper disposal materials prior to their entry to the municipal sewer system in order to the burdens of such improper disposals on the originator of the waste. A trap assembly captures improper disposal materials at their source so as to provide notice to the generator of such waste that such activity is prohibited and to provide a mechanism by which responsibility for such improper waste disposal can be correctly identified and assigned while including an animal screen at an outlet thereof to prevent ingress of animals.

A method and system that operates to capture improper disposal materials prior to their entry to the municipal sewer system in order to the burdens of such improper disposals on the originator of the waste. A trap assembly captures improper disposal materials at their source so as to provide notice to the generator of such waste that such activity is prohibited and to provide a mechanism by which responsibility for such improper waste disposal can be correctly identified and assigned while including an animal screen at an outlet thereof to prevent ingress of animals.