"Stormin Mormon" wrote in message
...
Friend of mine, is acting as caretaker for a family member's
house. The power got shut off, and the house is cold inside.. . .
Last night, we put RV antifreeze in the drain traps.

"JoeSpareBedroom" wrote in message
...

Unless the drains were clogged, why would there be any water in them? And
what little is left in the traps would have plenty of room for expansion.

The function of water in a P-trap is to prevent sewer gases
rising into the house. It is cheaper to refill the traps with
non-freezing liquid than to chance months' exposure of
soft furnishings to sewer gases, which is likely to be
incurable.

--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)