CPVC is shit. You just need to let the water run a bit out of the faucets and hopefully you will avoid a freeze-up. Typically just enough that it goes from drip to smallest steady stream. We use this technique frequently in unheated homes over the winter. Good luck!
Ever had a drain freeze up?
A bit of antifreeze takes care of that bit when needed (in advance), but typically not in crisis. A bit of warm water and a fan forced heater can help, but it’s not instant.
Asking for a friend?
Actually Im not worried, but if you leave water running what if the drain freezes? Antifreeze would run out and no heater will warm a drain? And we are assuming power doesnt go out.
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