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OT Plumbers/Construction: Cutting PVC Cleanouts

Posted on 10/7/18 at 9:13 pm
Posted by SirSaintly
Uptown, New Orleans
Member since Feb 2013
3131 posts
Posted on 10/7/18 at 9:13 pm
Having a new concrete patio poured this week. The guys came out yesterday to demo the old deck. Apparently there are 2 3" PVC cleanouts that the previous owners just built the deck over. They both stick up about 18" out of the ground. Of course, this is where the patio is going.

I'm cool with cutting them both flush to the concrete patio and capping them. Concrete guy said I should put foam around them so the concrete doesn't fix to the actual pipes.

I went to Home Depot and guy there told me to just buy 4" PVC to put over the existing 3" PVC pipes and that would give a 1" barrier between the concrete and the cleanout pipes. Sounds better than foam to me. Any issues with this?

Also, I was told it'd be easier to cut flush before they pour the concrete, but until they pour, I won't know how much to cut off to make flush. Any ideas on this?

I got 2 3" PVC caps and 2 3" cleanout adapters. Just not sure how I should go about cutting them so it sits flush with the concrete patio.
Posted by jimbeam
University of LSU
Member since Oct 2011
75703 posts
Posted on 10/7/18 at 9:14 pm to
quote:

OT Plumbers/Construction:
the real baws. Most bang for the buck schoolin in Sout Louziana yeard.
Posted by bee Rye
New orleans
Member since Jan 2006
33961 posts
Posted on 10/7/18 at 9:18 pm to
I don’t know much about plumbing, but I do know that you should rarely take the advice of a Home Depot employee
Posted by AndyCBR
Baton Rouge, LA
Member since Nov 2012
7541 posts
Posted on 10/7/18 at 9:19 pm to
If it were me I would go to a plumbing supply and get 2 clean out covers. They are small circular cast iron rings with covers that are made to pour flush with the concrete. You typically use a larger piece of pvc pipe as a sleeve.

In BR, Coburns or Southern pipe.

Posted by LZ83
La
Member since Sep 2016
17406 posts
Posted on 10/7/18 at 9:20 pm to
Why not put the 4inch pipe and the foam?
Posted by whit
Baton Rouge
Member since Sep 2010
10998 posts
Posted on 10/7/18 at 9:31 pm to
Just get some clean out covers. No biggie
Posted by GO TIGERS GO
Member since Sep 2007
1029 posts
Posted on 10/7/18 at 9:36 pm to
AndyCBR has the right answer.

Pull a string to get the elevation of the c.o.

By far the best option for function and appearance
Posted by troyt37
Member since Mar 2008
13315 posts
Posted on 10/7/18 at 10:11 pm to
LINK

I’ve been a Plumbing sales rep for over 20 years. Something like this would be simple. Tons of other clean outs available though.
Posted by Chuker
St George, Louisiana
Member since Nov 2015
7544 posts
Posted on 10/7/18 at 10:20 pm to
quote:

Coburns or Southern pipe.




if you go to one of these places and just tell them what you're trying to accomplish, they should hook you up. This is not a difficult problem.

Don't go to Home Depot for plumbing advice.
Posted by MarcusQuinn
Member since Aug 2005
582 posts
Posted on 10/7/18 at 10:34 pm to
You may want to consider extending the lines past the concrete instead of putting cleanout covers in your new deck.
Posted by Spankum
Miss-sippi
Member since Jan 2007
55979 posts
Posted on 10/7/18 at 10:37 pm to
quote:

If it were me I would go to a plumbing supply and get 2 clean out covers. They are small circular cast iron rings with covers that are made to pour flush with the concrete. You typically use a larger piece of pvc pipe as a sleeve.


This is the best answer...
Posted by skinny domino
sebr
Member since Feb 2007
14330 posts
Posted on 10/8/18 at 3:37 am to
quote:

If it were me I would go to a plumbing supply and get 2 clean out covers. They are small circular cast iron rings with covers that are made to pour flush with the concrete. You typically use a larger piece of pvc pipe as a sleeve. In BR, Coburns or Southern pipe.
Posted by Capital Cajun
Over Yonder
Member since Aug 2007
5525 posts
Posted on 10/8/18 at 6:04 am to
They make a tiny saw blade type wheel you put on the end of a drill and cut the pipe from the inside.

Get some nice brass/metal clean out covers. May have to go to an actual plumbing supply place though. Foam or poly around the pipe like the concrete man said.
Posted by tigeraddict
Baton Rouge
Member since Mar 2007
11794 posts
Posted on 10/8/18 at 6:19 am to
They make an 8” cast iron ring and lid for this application. You cut the pipe off below grade and put in the clean out adapter and plug also below grade.

Then pour the ring and cover into the slab pour.
Posted by tigeraddict
Baton Rouge
Member since Mar 2007
11794 posts
Posted on 10/8/18 at 6:22 am to
Cast iron ring and cover

Any plumbing supply house will stock these. Southern pipe, Coburns, Ferguson, LCR etc

This post was edited on 10/8/18 at 7:51 am
Posted by Tiger in Gatorland
Moonshine Holler
Member since Sep 2006
9076 posts
Posted on 10/8/18 at 7:19 am to
Just cap it and pour your slab over it. If you ever need to clean out then jackhammer the slab up.
Posted by doubleb
Baton Rouge
Member since Aug 2006
35905 posts
Posted on 10/8/18 at 9:30 am to
Use the cast iron ring and cover for access.
Use the PVC clean out with plug to "cap" the stub up.
I'd recommend a short piece of PVC pipe as a sleeve and as something for the cast iron ring and cover to rest on.
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