A dosage dispenser 10, 50 for a waste holding tank 12, 24 having a pour out spout 22, 28 in communication with a waste chamber includes a dosage housing 30, carried by the pour out spout 22, 28 and a plurality of dosages 32. The plurality of dosages 32 eac...

A waste fluid containment and draining system (10) may have a black waste water holding structure (12) for holding black waste water and a grey waste water holding structure (14) for holding grey waste water. First and second valves (22,24) may be included...

A service door assembly (10) for a recreational vehicle including a sidewall defining an opening, the sidewall including an inner panel, an outer panel and a cavity therebetween filled with an insulation material. The service door assembly (10) includes a ...

A self-contained sanitary system (50) for a vehicle (10) includes a toilet (70) with a flush tank (80) for storing a source of flush water. The system further includes a spout (82) in fluid communication with the flush tank (80). The spout (82) has a first...

A waste transfer system includes a toilet bowl, a discharge pipe, and a hopper. The hopper is positioned between the toilet bowl and the discharge pipe. A first valve is disposed between the toilet bowl and the hopper. A second valve is disposed between th...

A service door assembly (10) for a recreational vehicle (12) including a sidewall (14) defining an opening, the sidewall including an inner panel, an outer panel and a cavity therebetween filled with an insulation material. The service door assembly includ...

A valve and vent assembly for a self-contained sanitary system of the type including a toilet (10) structure with a downwardly directed outlet opening (16) and a storage compartment (12) defined and located below the outlet opening (16), and a waste holdin...