Bluegrass Picker
Member
Hi,
Single story home with basement. We're swapping out the old bathtub for a new Sterling tub.
I will have to replace the old 1 1/4" trap with a 1 1/2" trap which means I'll need to cut into the vertical copper 1 1/4" vent pipe that extends from below the tub up through the roof to attach a new 1 1/2" T for the trap and for the outflow that goes to the drain stack in the basement.
After I disconnected the tub drain, it appears that the vent pipe that goes through the roof is loose, in that I can move it slightly up and down as if it's not attached in the attic. Does the pipe generally in most situations move inside the vent stack that is attached to the roofing, or am I possibly making a potential roof leak happen?
I ask this question because if I can cut the T out in the joist area in the basement below the tub and then grab and raise the vent pipe up about 6 or 8 inches or so, I can splice a 1 1/2" vertical pipe directly to the copper vent up in the bathroom wall which would leave me a 1 1/2" stub sticking down through the subfloor in which to attach my T and the new 1 1/2" trap. Space is extremely tight below that subfloor in the joists, so there's no room for a Fernco coupler below the subfloor and then a T. Basically the plan is to transition from the copper to PVC in the bathroom wall and then have PVC for the rest of the bathroom drain parts and pieces that eventually end at the main stack.
Am I possibly going to damage anything in the attic or roof? (We are having freezing rain, so climbing on the roof right now is not an option, and there's about 2 feet of blow in insulation in the attic, so climbing around in there is not fun).
Here's a couple of photos of the existing trap if that helps at all.
Thanks in advance for any advice.
Bluegrass Picker
Single story home with basement. We're swapping out the old bathtub for a new Sterling tub.
I will have to replace the old 1 1/4" trap with a 1 1/2" trap which means I'll need to cut into the vertical copper 1 1/4" vent pipe that extends from below the tub up through the roof to attach a new 1 1/2" T for the trap and for the outflow that goes to the drain stack in the basement.
After I disconnected the tub drain, it appears that the vent pipe that goes through the roof is loose, in that I can move it slightly up and down as if it's not attached in the attic. Does the pipe generally in most situations move inside the vent stack that is attached to the roofing, or am I possibly making a potential roof leak happen?
I ask this question because if I can cut the T out in the joist area in the basement below the tub and then grab and raise the vent pipe up about 6 or 8 inches or so, I can splice a 1 1/2" vertical pipe directly to the copper vent up in the bathroom wall which would leave me a 1 1/2" stub sticking down through the subfloor in which to attach my T and the new 1 1/2" trap. Space is extremely tight below that subfloor in the joists, so there's no room for a Fernco coupler below the subfloor and then a T. Basically the plan is to transition from the copper to PVC in the bathroom wall and then have PVC for the rest of the bathroom drain parts and pieces that eventually end at the main stack.
Am I possibly going to damage anything in the attic or roof? (We are having freezing rain, so climbing on the roof right now is not an option, and there's about 2 feet of blow in insulation in the attic, so climbing around in there is not fun).
Here's a couple of photos of the existing trap if that helps at all.
Thanks in advance for any advice.
Bluegrass Picker