The question posted yesterday is so close to what I want to do I hate to ask this -- but I need help with the mechanics of pulling this off.
In the first photo you can see the current configuration in 105 year old cast iron. There is a weird wye and the laundry basin seems to join the vent side at about 10" above the floor (barely visible but it comes through the hole in the wall). The off-setting curve in the vent has a 2.5" outside diameter at the top and a 2" outside diameter on the bottom. The offset is 4".
I would like to install a washer standpipe on the other side of the wall next to the sink. From yesterday's (and several other) post I gather that:
a) I can replace the offsetting piece with some PVC that includes a sani-tee and add the standpipe there as long as I also
b) add a wye/combo in the horizontal part (after the stand-pipe trap) and connect that to the vent above the stand-pipe with another sani-tee.
If I am correct so far, can anyone give me tips on how to:
c) cobble together my connection with that "reducing offset"? Also,
d) what is the best way to connect PVC to the existing cast iron?
Thanks in advance for any advice.
The 2nd photo is just my unworkable attempt at figuring out the offset.