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Old 03-02-2008, 10:26   #1
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Find and repair leak in fresh water tank

My 1990 Caliber 38 has aluminum freshwater tanks that seem to have sprung leaks. The tanks are baffled and we cannot spot the holes. We have contemplated tearing out the sole and the settees and trying to remove and replace the tanks, but everything is glued and screwed together, meaning gutting the boat will result in having to re-build the settees and sole and further replacing the teak and holly throughout the whole boat so it all matches. Does anyone know of any sort of lining that can be sprayed on or some sort of poly liner that can be inserted if we cut out the tank baffles? Anything that can be done without having to do a major demo and repair is preferable. Thanks in advance for the responses.
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Old 03-02-2008, 13:42   #2
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Chances are if the tanks are older and sprung a leak, they will continue to give you problems. Another thing that happens to Aluminum tanks is if somehow salt water sloshed up against them from time to time, they corroded form the outside in.
If none of the above apply, it could just be a fitting or loose hose clamp near the tank. If worst comes to worst, RONCO makes a great assortment of urethane tanks...good luck
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Old 03-02-2008, 14:58   #3
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jenifox, First you need to determine where and how bad your leaks are. best way is to seal up all holes like intake, discharge, vent, etc and force air into the tank. The leaks will become obvious. From that point you will be able to determine what if any repairs you can do.
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fresh water tank

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