SailNet Community - View Single Post - Bilge pump non return valve.
View Single Post
Old 11-13-2012
BubbleheadMd's Avatar
BubbleheadMd BubbleheadMd is online now
Join Date: Nov 2009
Location: Edgewater/Annapolis
Posts: 3,210
Thanks: 2
Thanked 75 Times in 70 Posts
Rep Power: 6
BubbleheadMd will become famous soon enough
Send a message via Yahoo to BubbleheadMd
Re: Bilge pump non return valve.

Originally Posted by Sabreman View Post
As Maine Sail says, it's a mistake to install a check valve in line with a centrifugal bilge pump (e.g., Rule pumps). The pump can move a lot of water but doesn't have much power. Think of it as high voltage, low amperage. Use a Vented Loop instead.

The PO of our boat installed a check valve and the bilge pump never really worked. I fussed with it for the first few months of ownership until the bilge filled and the battery drained when the pump ran in a vain attempt to move the water. I installed a vented loop and haven't thought of it in 7 years.
If I install a vented loop in my discharge line, should be closer to the pump, or to the point of discharge?
S/V Old Shoes
1973 Pearson 30 #255
Reply With Quote Share with Facebook