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Old 02-25-2014, 02:25 PM   #1
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toilet flange issue


Hi I am renovating a bathroom. I just removed the old floor tile to find that the sublfoor is in 2 parts. 1 part 1/2 inch particle board and the other half is self levelling cement.

The toilet flange is screwed into the self levelling cement. I have removed a lot of the cement around it. The flange is one long piece that goes down into the floor.

Should I remove it and put the subfloor down and then cut the hole and put a new flange in? Not sure how the flange is attached at the bottom. WHat a mess!
Here are some pics.
http://s11.postimg.org/3yrsve0xf/flange1.jpg

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Old 02-25-2014, 03:18 PM   #2
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toilet flange issue


Easiest way to deal with it is to go below the floor and just cut off the pipe and pull the whole thing out.
You do know all that old subflooring has to go .right?

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Old 02-25-2014, 04:06 PM   #3
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toilet flange issue


Concur with Joe. Cut it and then install a collar and a section of piping (3" or 4" depending upon the size) and leave the pipe standing 'as is' until you get the floor completed. Then depending how long it is/how far down it goes, you can proceed from there.

Once you get the floor installed, the top of that flange must be 1/4" above the finished floor. You can be off a bit, but stay as close to 1/4" as possible.
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Old 02-25-2014, 04:37 PM   #4
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toilet flange issue


I am removing sub floor. How deep should i cut? It seems impossible to get a saw in a horizontal angle to cut it?
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Old 02-25-2014, 05:24 PM   #5
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toilet flange issue


If you can't get enough room under the subfloor, and have a drill (electric or battery operated) there are internal pipe cutters you can buy. Such as this one (hopefully the picture attachment works).
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Old 02-25-2014, 06:03 PM   #6
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toilet flange issue


Check to see where the 90 is at below the flange. They may be close coupled. Cutting it might produce another problem...
Can you access the bottom side?
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Old 02-25-2014, 07:43 PM   #7
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toilet flange issue


the 90 is 18 inches down. I am on the second floor. Can you get that saw drill bit at HD? I just picked up an oscillating saw but it won't help me get down there.
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Old 02-25-2014, 07:48 PM   #8
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toilet flange issue


HD should have it in the plumbing dept. I suggest you stuff a rag down the pipe- below your cut line. Those bits come loose in the drill chuck and fall out. Then you need a big magnet to retrieve it.....
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Old 02-25-2014, 09:25 PM   #9
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Quote:
Originally Posted by tiki16 View Post
the 90 is 18 inches down. I am on the second floor. Can you get that saw drill bit at HD? I just picked up an oscillating saw but it won't help me get down there.

That's where I got mine. In the aisle where they have the repair pairs.
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Old 02-25-2014, 10:07 PM   #10
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toilet flange issue


Look what I've uncovered. Any suggestions?
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Old 02-25-2014, 11:49 PM   #11
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toilet flange issue


Just looks like every old house I've ever work on before.
Think you found your reason it was leaking and rotted out.
Just go rent or buy a Toe kick saw or even a sawsall with a short wide wood cutting blade and cut out the rest of those floor boards.
Install all new 3/4" thick Advantech subflooring with construction adhesive on the joist.
The subflooring and flange needed to be installed above the joist not along side of it.
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Old 02-26-2014, 08:02 AM   #12
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toilet flange issue


Yep.

Remove and replace the subfloor. What Joe suggested is good. Yet I'd shoot some deck screws also since those joists aren't in the best shape.

Since this project is going to grow, start thinking a couple of steps ahead (such as the height of the finished floor when your done, new vanity/toilet, etc.).

Are you planning to lay tile or laminated sheeting (linoleum)?
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Old 02-26-2014, 04:57 PM   #13
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toilet flange issue


What if I leave the 1/2" plywood sub floor to the left of the pic and install 1/2" beside it and then go 1/2" plywood 5'x5' over the whole area for a total 1" sub and lay tiles on top?
thanks
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Old 02-26-2014, 08:05 PM   #14
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toilet flange issue


#1, 1/2 subflooring is useless as a subfloor.
All it does is act like a shim sitting on top of the joist.
#2, It's going to just be adding to your finished height and add almost no strength.
Sure looks like an older home, what that tells me is under sized over spanned joists, uneven floors from sagging, and floor bounce.
Once the old sub floorings gone the joist can be sistered for added strength and allow for leveling.
If your going to tile your going to need that 3/4 T & G subflooring and at least 3/8 underlayment rated plywood over that.
Then you'll need 1/4 tile board set in a bed of thin set.
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Old 02-26-2014, 08:11 PM   #15
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toilet flange issue


Quote:
Originally Posted by tiki16 View Post
What if I leave the 1/2" plywood sub floor to the left of the pic and install 1/2" beside it and then go 1/2" plywood 5'x5' over the whole area for a total 1" sub and lay tiles on top?
thanks
tiki16- I recommend that you start a new thread about your subflooring over at http://www.diychatroom.com/f19/. This will give you more exposure to that issue and this thread will continue to address your flange install/repair. Thanks

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