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I have cast iron under slab in my basement with a whole house trap and then a clean out right before it exits my house. I plan on discharging my sump into the clean out. Something like this: Would this cause any issues being right after the whole house trap? Should I vent it? Also, is there...

Thank you, all! I ran water through all the pipes and no leaks and everything seems to drain well and p-traps are holding water. I was worried about the Fernco fitting but no leaks. I've noticed that it has essentially been "in use" since I installed it since it is connected to one side of...

Just checked and it is not exact. I have a 3% (3/8"?) slope on the barrel but the lav side wye is slightly lower than the shower side inlet which results in a 1/8" slope on the lav side for the last foot into the main stack. The rest of the line is just under 3/8" slope. I have 1/4" slope on the...

So, I ended up cutting everything out at the old copper fitting and used a shielded coupling to connect to 3” pvc. I was able to fit a double wye behind the WC this way. I’m going to put the subfloor in next weekend and I’m going to be running pex and checking for leaks this week. Just wanted to...

@wwhitney thanks for your input. After opening up the floor some things have changed. I was hoping to get your input on my new plan. I don’t have room to fit a wye before the toilet so my new 2” lav drain would connect to the 3” toilet drain via an upright combo. Could I drain the bath into...

Thanks so much for the info. I plan to use 2" for the bath drain so the trap arm won't be too long. I was definitely thinking of using a quarter bend with heel inlet, so thanks for calling that out. Joining with a horizontal wye would actually be easier for me anyway since the lav drain will be...

Hi, This forum has been extremely helpful to me over the past few years. This is my first time posting as I'm feeling that I'm a bit in over my head on this bathroom remodel. I was hoping to get some input on my plumbing plans. I'm adding a freestanding tub next to the existing shower drain...