Quote:
Originally Posted by Harvard
The most likely place for a holding tank to freeze (expand and split) are in the exit pipes upstream of the gate valves. IMO.
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Then why does the mfr of the heating pads for elbows and gate valves say don't leave them on and only turn on to thaw out before dumping? I would think on short runs the liquid would expand into the holding tank and not split the pipe?!
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