[C320-list] Chasing Leaks, yes starting that convo

[Dave Hupe]

Here is my litany of leak discovery and repair..... primarily with regard to the aft section of the boat....and focusing on things that are not obvious! I am not repeating suggestions from other owners like water heater leaks, hatches that should be easy to see, etc.
Jacob ... I am not sure if you have the shallow bilge like me. If you do, water can get into the structural grid system and slowly seep out/up around your keel bolts.  This can definitely look like a keel bolt leak, but very likely is not ..... I know this from fixing surface water leaks as explained below and gradually seeing my keel bolts dry up several times.

1. The emergency tiller hatch is a bad design and prone to leakage. I replaced my entire hatch/port early on but the rubber seal is not great.  A coating of grease on the rubber o-ring can help seal out water for a while. 2. The seal around the top edge of the pan holding the propane tank on my boat leaked like crazy.  This compartment is not like the others in the cockpit.  There is no lip that the compartment cover seals over to prevent water intrusion. There were only 4 screws holding the pan down.  After removing the tank and unhooking the pan water drain hose, I lifted the pan up just enough to rebed it (didn’t need to unhook the propane lines) ... leak gone.3. The faucet of the stern shower leaked around the mount holes/water connections. There was no caulk at all beneath the faucet assembly. I bebbed it with butyl tape to stop the leak (a little tough since there us very little edge on the faucet assembly to seal).4. My Whale emergency pump in the cockpit was leaking around the outer seal.   I completely replaced the pump since it needed rebuilt anyway.5. I had a water line break hidden within my structural grid traveling from my Galley area to the head sink. This looked like a keel bolt leak due to water pooling in my structural grid,  but I replaced both hot and cold water lines which eliminated the seepage. I was unable to remove the old lines .... I just cut them and rerouted to install new lines. 
Dave Hupe 
1994 C320 #32
Holland,  MI 

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  On Fri, Mar 22, 2024 at 8:27 PM, Jacob Lang via C320-list<c320-list at lists.catalina320.com> wrote:   I may regret starting this thread but I’m curious. While my boat is in the water I believe my keel bolts were slightly weeping. The boat is out on the hard now and I’m addressing the slight cracks on the front of the keel using gflex and then additionally I’m resealing the washers around the keel bolts. 

However, my real questions start with what I’m still chasing. I seem to have a fresh water coming in during storms. It’s been about three months that it’s been on the hard so the accumulation of about 2 to 3 gallons is a bit concerning. I think I’ve traced a leak down to at least one window. ( the one in the cockpit starboard side facing aft). However that can’t be the only source. Anyone have any ideas to start tracing? I’m wondering if the lockers are leaking to the bilge. Any thoughts to begin the hunt would be appreciated. 

VR 
Jacob