Best way to add another toilet and sink to this existing cast iron drain

508 Views 2 Replies 2 Participants Last post by Shybz800x, Apr 18, 2020

Shybz800x

Discussion Starter · Apr 17, 2020

2

Hello,

I’d like to add a half bath with toilet and sink. I have 2 possibilities here.

1. Can I cut off the existing pipe shown in the pic and use a fernco to transition to pvc and put a sweeping wye basically inline with the current toilet drain?

2. If that’s not recommended, it appears a wye was capped off with some putty like compound and maybe I can add the additional toilet drain into this?

Any help is appreciated.

Thanks
Zack

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Ghostmaker

· #2 · Apr 17, 2020

Clean out the crap in the wye until you only have cast iron.
Then use the donut to adapt to plastic it seals in the hub like a lead joint used to.

https://www.ferguson.com/product/fe...ht-hub-extra-heavy-donut-f44ux401/_/R-2060455

https://www.homedepot.com/p/Fernco-...h-40-PVC-Compression-Donut-P33U-305/100170789

Shybz800x

Discussion Starter · #3 · Apr 18, 2020

Thanks that’s what I was thinking. I just have to clear out some studs from a non load bearing wall so should be fairly simple.

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