SailNet Community - View Single Post - Manual water pump priming sucks so much ....
View Single Post
post #8 of Old 05-21-2013
BubbleheadMd's Avatar
Join Date: Nov 2009
Location: Edgewater/Annapolis
Posts: 3,419
Thanks: 2
Thanked 83 Times in 78 Posts
Rep Power: 6
Send a message via Yahoo to BubbleheadMd
Re: Manual water pump priming sucks so much ....

You have a leak, but it's an air leak.

Air is leaking into the system, probably at the diaphram inside the pump. Hence, you lose prime, but no water leaks out of the system.

Here's what I did: Dismantle the pump and soak the diaphram in a light coating of veg oil. It's safe for humans, and often causes the rubber to swell and moisten, and retain its prime.

S/V Old Shoes
1973 Pearson 30 #255
BubbleheadMd is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome