Cycling Bilge Pump

[Paul L]

Originally Posted by conachair

Sounds like it would work but float switch is combined with the pump so not poss.

Goggle not coming up with much in the way of sensors, wouldn't it be easy enough to make a couple with some gold terminals and a transistor? Would the water have enough conductivity? Not likely to be all that clean on a old steel boat.

These are $15 and come in N/O and N/C and are 12VDC
2600 | 12VDC Water Sensor | Home Security Store

[Oliver L.]

Conachair,

our float is also attached to the pump, but is at the top of the pump. The pump stops when there is approx. 4" of water left in the bilge. By lifting the float manually we get it down to about 1", which is enough to stop the cycling.

Oliver

[mbianka]

The bilge pump switch on my boat failed over the winter. I installed A Water Witch switch has a delay start and a delay off feature to prevent cycling:
THE BIANKA LOG BLOG: TROUBLE DOWN BELOW: Bilge Pump Switch