Shower drain help

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tzzoooma

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• Apr 24, 2009

• #1

I've replaced the 1.5" drain with a 2".

Finally got under to see the connections, and the 1.5" drain line hooks
up to the 1.5" vent and 2" drain with a sanitary tee with those 3 size openings.

Can I/should I replace the 1.5" shower drain line with a 2"?

If so, is there a sanitary tee that has 2" openings on both sides and 1.5" on top for the vent? The one there now as I said is 1.5" one side, 2" other side, and 1.5" on top for vent.

 

Marty53

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• Apr 24, 2009

• #2

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I haven't seen that fitting at blue or orange box stores. you could just get a 2" Tee and use a 1.5x2" hub on the vent side. Is the existing tee vertical or horizontal? If horizontal you have to use a combo wye or wye/45

 

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Marty53

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• Apr 24, 2009

• #3

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you could put a fernco coupler on the vent line and do something like this that I just did (the old galvanized fittings I took out used a Tee on its back just like your situation). I changed it to a wye and a 45:

 

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tzzoooma

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• Apr 24, 2009

• #4

Thanks, but there isn't much room left to access the vent line, maybe 2 inches of it after i cut away the tee. Not sure how I could do it now, maybe just live with the shower drain reduced to 1.5" and then into the current tee? Any ideas?

 

Marty53

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• Apr 24, 2009

• #5

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Its not "legal" to reduce the size of a drain, so you will have to fix this to be up to code. It looks like you have enough room there to put a 2" combo wye with 1.5" reducing hub on the vent end. You'll just have to cut back the drain line coming from the shower a little more to be able to fit it in and you should be fine.

 

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tzzoooma

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• Apr 24, 2009

• #6

okay, i'll pick one up and see if it's a go.
thanks for your help.

 

Gary Swart

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• Apr 24, 2009

• #7

You can not legally use a neoprene Fernco coupler above ground. If you need to use a coupler, use the banded or no-hub style. Very similar, but these offer ridge support to the joint that the neoprene alone does not.