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Bathtub drain backs up when weather is very cold...?
The bathroom is above the garage. The garage is not heated. I am assuming that the drain must be freezing, since it only happens when the weather is below freezing for more than a full day. If water is collecting in the drain it must either have negative pitch or there must be a trap installed and the water in the trap is freezing causing a blockage. Anyone else seen this problem??? Any easy fixes?? I would have to cut a hole in the drywall of the ceiling in the garage to access it, but should I just remove the trap?? What problems could that cause?
The walls of the garage are bare studs, but the ceiling is drywalled. I haven't cut open the ceiling yet, but I am assuming that there is insulation in the ceiling and that is why they hung the drywall.
5 Answers
- TomComLv 41 decade agoFavorite Answer
Drain pipe should have a 1/4" drop in pitch per foot. Any less and it is slow to drain. Any more and the liquids will run out, leaving the solids behind.
As far an insulation is concerned, I would definitely insulate underneath of the bathroom! You might consider hiring a company to blow in cellulose insulation. Or, you could always remove the sheetroc and install batt insulation yourself (paper side towards the heat, according to the label).
- Rita RoseLv 51 decade ago
If you take out the trap you will have smell now and worse in the hot months. I would cut the hole very neat and wrap the pipe with thick insulation as far as you can reach in both directions. Place the piece of drywall back and nail it in place. Should be good to go.
- Honsell TLv 41 decade ago
Keep the trap on there, you need it to keep the sewer gases from entering the house.
I would try insulating the trap, then replace the sheetrock.
- ?Lv 51 decade ago
Yes the pipes will freeze up with each use. Every time you run the water it build up little by little until the pipe is completely frozen.
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