Setting a closet flange
#11
  Re: (...)
Roughing in plumbing for a new bathroom. I'll be building a subfloor about 1' over concrete slab. I have 2 questions regarding setting the toilet's closet flange.

Do you set the flange so that its face is planar with the floor, or proud of the floor? If proud, by how much?

I've found two types of available flanges. The first solvent welds outside the pipe, like any common pvc fittings. The second fits inside the pipe. It would reduce the available diameter, but also pretty much ensures nothing would ever seep out a bad weld joint. Wondering what folks opinions are on picking one.
Shame on the men who can court exemption from present trouble and expense at the price of their own posterity's liberty! - Samuel Adams
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#12
  Re: Setting a closet flange by Mandrake (Roughing in plumbing...)
I'm no expert but I would much prefer the certainty of the inside flange joint over the uncertainty of the joint on the outside flange. As they say.......poop don't flow uphill.
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#13
  Re: Setting a closet flange by Mandrake (Roughing in plumbing...)
I just finished my bathroom, set the flange flush to the finished floor and 12" to the center off the finished wall, 12 1/2" if the wall is unfinished.

Mel
ABC(Anything But Crapsman)club member
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#14
  Re: Setting a closet flange by Mandrake (Roughing in plumbing...)
Sits on top of the subfloor.

It doesn't really matter if you use an inside or outside fitting. My preference is one with an integral street Ell, but really, any one will do.
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#15
  Re: Setting a closet flange by Mandrake (Roughing in plumbing...)
External and flush with finished floor too minus 1/8th".
Blackhat
Common decency is as rare as common sense. I figure there was only a finite amount of both made and its getting shared out among too many folks.


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#16
  Re: Setting a closet flange by Mandrake (Roughing in plumbing...)
The toilet's outlet hole is not big anyway, and outside v inside flange will not make difference at all.
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#17
  Re: Re: Setting a closet flange by Alex Grigoriev (The toilet's outlet ...)
That would be incorrect.
Blackhat
Common decency is as rare as common sense. I figure there was only a finite amount of both made and its getting shared out among too many folks.


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#18
  Re: Re: Setting a closet flange by Alex Grigoriev (The toilet's outlet ...)
My line size is 4". My original attraction to the internal flange was due to the concrete and tar schmutz that coats the outside of the pipe from the slab pour. Since I am now planning on building up a subfloor, I can clean and cut the pipe and couple a new section if I need to; but that sill might have me glue / welding to a previously schmutzed surface.
Shame on the men who can court exemption from present trouble and expense at the price of their own posterity's liberty! - Samuel Adams
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#19
  Re: Re: Setting a closet flange by Mandrake (My line size is 4". ...)
PVC primer and a rag on a stick should take care of the schmutz.
Blackhat
Common decency is as rare as common sense. I figure there was only a finite amount of both made and its getting shared out among too many folks.


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#20
  Re: Re: Setting a closet flange by blackhat (That would be incorr...)
blackhat said:


That would be incorrect.


The outlet is about 2 1/2". The flange hole will be 4" or 3 1/2".
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