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 ...

The primary job of most bilge pumps on most boats is to clear infliction water from the bilges (https://en.wikipedia.org/wiki/Bilge_pump). A bilge pump is a key piece ...