It has been really cold in DC lately. My thermostat is broken, so it goes to 77 degrees no matter what I set it to. I tried to get it fixed, but it ended up being a waste of $50 because they just cleaned the boiler, although I told them over the phone what the problem is. So I decided to just ignore it because winter is almost over anyway. I turn the heat off at night since I'm under my blankets, so it was 46 degrees in the house when I woke up yesterday morning.
I noticed that the cold water to the entire upstairs bathroom wasn't working. I left the heat on all day, and the faucet and toilet cold water line thawed out. But the tub cold water line is still not working, now a full day later.
I've tried the hair dryer thing, and next I'm thinking about using the wet vac on the faucet to see if an air pocket is the problem. My Dad thinks this is a bad idea. Is it?
Anyway, in the mean time I've been leaving the faucet open so pressure doesn't build up and also so I can hear it when it hopefully comes back on. But after reading some more stuff on line I'm worried that leaving the faucet open means there is still water trying to come through the pipe and that will burst it.
So long story short, if a cold water line is frozen do I leave the faucet open or closed?