There's much to be said for potting.
Running issues
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Thanks for the photos. Scary stuff. The 'PC board' must be where the positive leads to various locations disperse from a central board. I have something like that, but water can't drip down onto it, since it is attached to the underside of the deck, which is plywood and less likely to condensate than fiberglass. Also, in winter I keep a heater going inside the boat to reduce condensation. What I want to know is, if there was a torch on the vent hose while it was burning, why did it stop, if there was vapor pressure in the tank to keep supplying vapor to the flame? I would have thought that the flame would draw vapor out from the tank. I can only guess that the vapor pressure wasn't enough to keep supplying the flame, and/or there wasn't enough air in the hose for the flame to travel down it. But on further thought, the nature of flame is it needs air at the base, and the hose prevented that, since it didn't burn fast enough. Also the flame would not draw vapor out from the tank unless the fill was open enough to let air in. Anyway, close call. It took me awhile to get 'potting' to mean fuses or breakers. Hadn't heard that one before.
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Originally posted by capnward View PostIt took me awhile to get 'potting' to mean fuses or breakers. Hadn't heard that one before.
Had Tom's circuit board (I assume a prototype of some sort) been potted I expect it could have been submerged without ill effect.Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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