JDkimes
Engineer
In a bathroom sink drain that runs horizontal over about 15" and connects to the cast iron stack in a threaded connection.
There was a steel pipe that I'm taking out (full of corrosion and constantly plugging).
The steel pipe was 1 1/4"
Since there's no 1 1/4" ABS can I put a new ABS threaded fitting on that goes up to 1 1/2" (and then run 1 1/2" all the way back to the sink tailpiece)??
I'm concerned about the DWV necking down from 1 1/2" down to 1 1/4"
Follow up...if it's not okay to neck down, can I use PVC fittings?
(I'd prefer the ABS because another concern is the tight 90 degree turn this takes right after it goes in the wall, I'd like the sweeping 90 better)
Help wife coming home after vacation and I have the toilet and sink both in the garage)
There was a steel pipe that I'm taking out (full of corrosion and constantly plugging).
The steel pipe was 1 1/4"
Since there's no 1 1/4" ABS can I put a new ABS threaded fitting on that goes up to 1 1/2" (and then run 1 1/2" all the way back to the sink tailpiece)??
I'm concerned about the DWV necking down from 1 1/2" down to 1 1/4"
Follow up...if it's not okay to neck down, can I use PVC fittings?
(I'd prefer the ABS because another concern is the tight 90 degree turn this takes right after it goes in the wall, I'd like the sweeping 90 better)
Help wife coming home after vacation and I have the toilet and sink both in the garage)