Hi!
So, I've installed a used but very clean Crown electric head. The flush water pump has a check valve, which I assume is to save the pump the work of priming each time it's run and avoid running dry. The problem is that the ball seems to get stuck fairly often, requiring me to pull the input hose, stick something in and nudge the ball, after which it primes and runs well. There is no rhyme or reason to this -- it might work fine after the boat sits for a week, and it might fail five minutes after working. This weekend -- in frustration -- I simply pulled the check valve assembly, removed the spring and the ball and put it back together without those two parts. It now works fine, but obviouisly needs to prime from the through-hull after sitting for a bit (about 18" of hose). What to do????
So, I've installed a used but very clean Crown electric head. The flush water pump has a check valve, which I assume is to save the pump the work of priming each time it's run and avoid running dry. The problem is that the ball seems to get stuck fairly often, requiring me to pull the input hose, stick something in and nudge the ball, after which it primes and runs well. There is no rhyme or reason to this -- it might work fine after the boat sits for a week, and it might fail five minutes after working. This weekend -- in frustration -- I simply pulled the check valve assembly, removed the spring and the ball and put it back together without those two parts. It now works fine, but obviouisly needs to prime from the through-hull after sitting for a bit (about 18" of hose). What to do????