Re rough basement bathroom with unique setup Help please

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pmcint01

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I have a basement bathroom that is raised up about a foot of the concrete slab so it can connect to the horizontal sewer line that runs adjacent to it. Had to tear out the bathroom to install French drain and cut through the closet bend and the part going to the sink. No shower or tub. Old toilet flange leaked so obviously the bathroom needs to be re-roughed in. The toilet flange is so close to the sewer main which is 4" cast iron that there is very little room to install fittings.
Can anyone suggest the best way to re rough this? Is there a closet bend where I can connect the sink in to?

Hoping I can put in a cast iron donut into the black 45, but not sure if there is enough space for closet bend and sink lateral. Main sewer flows left to right obviously, but to the left is where the rest of the house sewerage enters so cutting in the main line would affect my entire house.

See attached diagram and photos.

Thank you.

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wwhitney

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Looks like you have about 8" from the edge of the branch hub on the cast iron wye to the center of the current closet flange?

The following option would have a lay length of about 10-1/4", of which you should be able to insert at least 1-1/2" into a rubber donut in the cast iron hub, for a net length of 8-3/4": a 3 x 3 x 1-1/2 street wye for the lavatory to come in (unless the NSPC requires 2" for wet venting a WC, I didn't check), then a 3" street quarter bend for your closet bend.

Hopefully that would work for you, seems hard to make that more compact.

Cheers, Wayne
 

pmcint01

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Wayne,

Thank you so much for this solution. One question for you is are you saying the street end of the Wye goes into the rubber donut in the cast iron hub of the existing cast iron wye?

Thank you,
Paul
 
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