This is the most plausible! I should have thought of it! Anyone want a slightly used engineering degree? I don't deserve to hold on to it
THANKS!
Quote:
Originally Posted by Cajundaddy
Heat from an older gas heater. When your system shuts down with the heater running, water in the heat exchanger is boiling and migrating back through the plumbing and thermo-forming the pipe. Add a fireman's switch to your timer that will shut the heater off 30 minutes before system shutdown. Always shut down your heater first and allow a 20 minute cool-down period before system shut down.
Modern pool heaters don't retain heat in the exchanger to the same degree so when you upgrade you will no longer have this problem.
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