Just finished clearing a frozen drain pipe

[Numo]

Similar temps here, so one thing I do is keep cabinet doors under the sink open until I outside temps warm up a bit.

[Rick-o]

Frozen pipes, whether drain or supply is a pain in the...neck. Sorry you had to go to so much trouble to resolve the issue. Kudos for sticking with it until you fixed the frozen clog. (tu)

[DP]

Oh, and drip your pipes at night till the warm comes back.

[anonymouse1]

Well done!

[hal]

"We've had a bit of a cold snap here. Around -10 degrees outside."

that would leave this area in a pile of rubble - every building would have broken pipes.

[NewtonMP2100]

....with the quarantine......a lot of single guys.......need to have their clogged pipes.....cleared.......

[C(-)ris]

Just got back from Hockey and dinner. I was trying to figure out why that spot would have had water to be able to freeze as well. Didn't make much sense to me either unless it was already plugged as it was a vertical section. Pipes are good, I snaked the entire thing and it drains very fast.

For some reason the supply lines come up through the bottom of the cabinet base, but the drain comes up through the wall and then comes out. Not sure why they put the drain in the wall.

The drain pipe is clamped to the outside wall of the house, the cavity is full of insulation, but all that it is doing is insulating the pipe from the heat of the indoors.

I'm contemplating moving it so it goes down through the cabinet base. I can do it, I'm just not sure it is worth the hassle. We went 5 years with no issues, and now that I know what I need to do it will only take 15 minutes to fix next time.

[AllGold]

C(-)ris wrote:
The drain pipe is clamped to the outside wall of the house, the cavity is full of insulation, but all that it is doing is insulating the pipe from the heat of the indoors.

Could the problem be the clamp transmitting heat (cold) to the pipe?

[Speedy]

I’m surprised the hot water from regularly running the dishwasher didn’t keep it open. I guess I would move it away from the outer wall since you’ve done half the work already.