Inside the DIY shower drain box: a bilge pump, float switch and outlet fittings for less than $25. Courtesy Roger Hughes When I bought my Down East 45, the shower in the aft stateroom's head drained ...
Look out for one-way valves located in your bilge-pump overboard discharge hose. The intended purpose is to prevent the water left in the bilge hose from flowing back into the boat after the pump ...