I bought an unusual custom 63' steel trawler
that is a fixer-upper. Since everything is custom, figuring out the systems is quite a puzzle.
A leak somewhere in the engine
room had me stumped. I've been laying toilet paper traps and I even considered dye. Finally it dawned on me that the bilge pump
itself is the source of the water
. I thought it was a little bit of backflow from the outflow line but now I see it is far more water
than can be in the outlet line itself.
I've read the threads on here about plumbing bilge pump
outlets. I'm thinking this isn't the correct way to do it. Here's what I've got:
The outlet line is below the waterline (marked in image as a horizontal blue line) and I believe the line is siphoning. It looks like the line has a one-way valve that has failed and is now leaking, and it has no anti-siphon valve. The outlet is to starboard. The line leads to a Rule
3700 submersible pump
that is wired to operate ONLY automatically via float switch. There is no other bilge pump
in this compartment.
How should I fix this if I do not move the through-hull? (e.g. it remains below the waterline?) A mechanic
wants me to just replace the ball valve.
I really appreciate the generosity of people on this forum who volunteer to help new owners like me. I don't know anything about plumbing
and I'm trying to learn fast.