Disposing of Gray Water: Flow Rates and Legality of the 1-Gallon Jug System
The RV industry insists on 5-to-15-gallon gray water tanks. Plumbed under a sink, a 5-gallon tank measures roughly 14 x 10 x 10 inches, consuming 1,400 cubic inches of cabinet space. Add the 1.5-inch PVC plumbing, the P-trap, and the vent line, and you lose half a cabinet just to store dirty water. For a…