Submitted by [deleted] t3_zuz4zy in pittsburgh
SabotUp007 t1_j1m48x4 wrote
Regardless of what temperature you settle on, make sure you turn off your water main, and then run all your faucets, shower, etc and flush the toilets to drain all the pipes.
Foef_Yet_Flalf t1_j1m7dum wrote
If you shut off your water mains then nothing much is gonna come out the taps anyway, so don't bother but will relieve pressure during a possible freeze. This isn't to say that shutting off your water isn't a good idea because it is.
colormeslowly t1_j1m8gi6 wrote
Although the main is off, there’s still water in the lines - can freeze. Best to drain. Unless I am misunderstanding your comment.
jxd132407 t1_j1mam7t wrote
Right. Turning off the water just prevents a major leak while away. But the risk is a freeze and burst pipe while away becoming a major leak when the water is turned back on. If you're turning down the temp that a freeze is a risk, then drain the pipes.
Foef_Yet_Flalf t1_j1midj6 wrote
My mistake, I thought the intent was that opening faucets would drain the pipes, but relieving pressure makes way more sense. I've edited my comment
cmyk412 t1_j1meqd7 wrote
Opening up the faucets with the main shut off relieves pressure from the lines and gives the water some place to expand to if any water is left that happens to freeze.
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