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Old 05-12-2012, 08:49 PM   #1
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Toilet flange sizes


I have a 3 inch od toilet flange designed to fit inside a 3 inch id toilet pipe. The flange fits over the hole and the rest goes about 2 inches deep in the waste pipe (3 inch id) Is this method ok to use, after gluing tight of course?

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Old 05-12-2012, 09:03 PM   #2
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Toilet flange sizes


Yes---maybe---

The 3" inside glued flanges will often hit the ceramic horn of the toilet --if the flange is mounted on top of the finished floor---if you install the flange so that it is even with the top of the floor you will be fine.

I avoid those and usually go for a flange that is glued to the outside of the pipe.

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Old 05-12-2012, 09:24 PM   #3
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Thanks, Mike.

I prefit the flange over the ceramic horn and there seems to be plenty of room for the horn to fit inside the flange. I'm just concerned about the small reduction in the size of the waste opening at the horn. Is there a problem with this?

Brand new to this forum today, how do I post pics?
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Old 05-12-2012, 09:35 PM   #4
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Toilet flange sizes


it is bigger than toilet horn so toilet would clog before flange
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Old 05-12-2012, 09:42 PM   #5
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Toilet flange sizes


Quote:
Brand new to this forum today, how do I post pics?
How to attach a photo to a post
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Old 05-12-2012, 09:47 PM   #6
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Toilet flange sizes


Thanks, Jay


My toilet project start when we decided to have hardwood installed in the bath. I realized that the toilet would have to be raised 3/4 inch. Then the toilet was removed, but only could get the top of the flange off, 4 inches of pvc still glued inside. Would some kind of add on top of original flange (spacer) been a better idea?
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Old 05-13-2012, 05:45 AM   #7
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Toilet flange sizes


Yep---a flange extender sure would have been simpler---what's under this room?
Would it be easier to work from below?
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Old 05-14-2012, 12:57 PM   #8
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Mike,
I removed the old flange because I was told the flooring has to go UNDER the flange.
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Old 05-14-2012, 07:40 PM   #9
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It's to late now---the hardwood would have been better off around the flange,not under it--

Hardwood moves---drain pipes and wax rings don't like that---typically the flange is attached to the subfloor--the hardwood set near the flange (to allow for expansion and contraction of the planks)

Then a flange extender is used to raise the flange to the proper height.

Could I ask who told you that the flange should be attached to the hardwood floor?
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Old 05-14-2012, 08:26 PM   #10
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eHow

http://www.ehow.com/info_8441803_sho...hed-floor.html
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Old 05-15-2012, 07:17 AM   #11
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Thanks for that---hardwood is the exception to the rule about mounting a flange to a finished floor.
Floating laminate would be another--
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Old 05-15-2012, 07:41 AM   #12
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Rather than trying to remove the remainder of the flange hub INSIDE the waste line, I think I will glue the new flange with the 3 inch ID hub and be done with it. What do you think?

Thanks again, Mike
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Old 05-15-2012, 08:34 AM   #13
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Toilet flange sizes


check this thread out from a few months ago:

Toilet install questions

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