the Bobrick B-5181 Left or Right Hand Reversible Folding Shower Seat makes an excellent choice

Valve Repair Group

A rubber bumper strip runs along the rim of the can for added protection for both users and the receptacle

and one 7 gallon tank for waste water

4-Pack - 9762

BOB Pipe-Mount Float Valve, 1/4 in -20 Rod Thread, Stainless Steel w/PTFE Seal - R1351-3/8 Nominal Size-18" X 1.25" the Bobrick B-5181 Left orFeaturing heavy duty stainless steel construction for corrosion resistance, this BOB high capacity float valve is ideal for use with caustic fluids and where sanitation is a concern. The valves short arm design allows you to easily adjust the water level to meet your specific requirements. Durable seals help provide long life.