- - I use the two tier bilge pump system. A small automatic 500 or less pump in the bottom of the bilge or sump area. And then a larger high capacity pump mounted higher up. Should the little pump not be able to handle the quantity then the bigger pump kicks in.
- - Bilge Pumps are notorious for over-stating what they will put out. Also they are notorious for poor contruction. Non-tinned wires, steel motor
shaft to the impeller and sticky auto-on/off switches. I had a small bilge pump go bad in the Bahamas
and when the water
got to the large capacity pump - nothing happened. Luckily I carry a duplicate/alternate pump in storage
for every installed bilge pump. The high capacity pump had never been used as the little pump worked fine. When I disassembled the high capacity pump the motor
shaft to impeller was rusted through and jammed. I switch brands.
- - Using the little pump is great as they are relatively cheaper and when they quit the replacement is easy. Always carry spares!
- - Also spare water
level sensors. They are also notorious for failing at the worst moment. So much stuff, oil
, hair, nuts and bolts and strange sealife always manages to somehow get into the bilges and clog the pump or disable the on/off level switch.
- - For hoses I use the cheap
white vinyl smooth wall. Never use corrugated hose - too much resistance to water flow. Also avoid translucent or transparent hoses. The sealife will growth wonderfully in those hoses clogging them up.