My plumbing system sttrictly adheres to the K.I.S.S. principle.
1. The water tank is a 7-gallon Aqua Gallon jug.
a. The spigot is gravity fed. No pump to fail. It will work even if the battery is dead.
b. It's inexpensive - costs less than $10 at Wal-Mart.
c. It can be filled remotely. We camp in state parks that rarely have water hookups. The jugs can be filled at a near by fawcett and brought back to the site.
d. Water storage capacity is easily and cheaply expanded. Just buy more jugs.
2. The sink is a plastic dishpan.
a. Conserves counter space. Stowes easily when not in use.
b. Allows dishwashing to take place away from galley. Keeps that dirty water away from my galley
c. It's inexpensive.
3. Water his heated in a large pot on the propane stove.