Head experience needed
After 20 years using a prota potty I finally put a real head in. This year, it went in after the season began so I had no seacock and thru hull - I just rinsed the bowl with some fresh water. In experminenting, I have found that the head uses an awful lot of outside water when the "wet bowl " valve position is used. Is all that water needed? I am considering not adding a thru hull and continuing just rinsing the bowl with a glass of water after each use.