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Your cart is empty.If you have more than 6” (15cm) of piping between your holding tank and the drainage termination valve or better known as the gate valve, you will need to consider heating them as well. Your gate valve is the lowest point of any RV holding tank system, and the piping before is the first to fill, and is also the first to freeze-up due to the lower volume of fluids and no circulation. Heating only your holding tanks will not extend heat out into the drainage piping more than the mentioned 6”, and once the drain pipe freezes up good luck vacating your tanks Wire a On&Off switch to yourt Pipe, pipe elbow and gate valve heater pad, they are not regulated by a automatic thermostat.
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