Freshwater Pump

[Ron M]

Just last week we just purchased a 2003 Beneteau 331. During the survey the freshwater pump worked flawlessly. However, during the delivery trip, when the water was NOT in use it began cycling ON momentarily about every 2 minutes. Any thoughts?

 

[SeaMist II]

Hi ..

We have a 323 .. If its out of water the pump runs all the while .. If you have a leak then the pump is just pumping up the pressure .. It may be a leak in the pump .. Ours is a Jabasco and just has a simple rubber diaphragm pump so rubber leaking ..
Try tightening the 4 screws that hold it together .. Change it .. Check all the pipe connections including the shower on the back .. They break if frozen ..

 

[duality]

i could also be a leak from the supply tank allowing air into the system.

mike

 

[DougM]

The pump shouldn't cycle unless there is demand. The tank is on the low pressure side of the system and probably isn't air tight anyway. I would look for a loose fitting or a drippy faucet. Worst case would be a line or fitting that froze and split...

Did you check for an unusual amount of water in the bilge?

 

[Philip_Oceanis 361]

Check if there's a leak from the accummulator tank. There could be a very very thin crack, not so easy to spot, but enough to cause these symptons.