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Thread: Need Help with Toilet Flange--Moss Bay Flange

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  1. #1
    DIY Junior Member Matt613's Avatar
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    Default Need Help with Toilet Flange--Moss Bay Flange

    The flange was rusted on my closet flange so I completely removed it leaving only the PVC pipe. The PVC pipe is a 4" x 3". I read online I could use a moss bay repair flange to fix it. However when I put it around the PVC pipe it is too big. I then tried "the clam" and it is also too big. What am I doing wrong? Any suggestions? Thank you in advance!

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
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    The repair ring is designed to notch into the slot of the old flange after carefully splitting the old metal part off...with the old flange gone, you need an entire new flange to be installed. If I'm misunderstanding you, a picture might help us understand what you have now.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    DIY Junior Member Matt613's Avatar
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    Thanks Jim. My PVC does not seem to have a slot for the flange to fit into. Here are 2 pictures: 1 with the moss bay flange and 1 with the clam.Name:  photo2.jpg
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  4. #4
    DIY Junior Member Bluegrass Picker's Avatar
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    I have an idea.

    Check Charlotte's catalog on page 60:

    http://www.google.com/url?sa=t&rct=j...Zru_DbSE-DXA1w

    It looks like they have a 6 3/4" flange part 1811 and 1812 which is smaller than the normal 7" flange.

    I'm not a plumber and other more knowledgeable persons here would certainly know more that I do, but it might be a possibility...

    Bluegrass Picker

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    DIY Junior Member Matt613's Avatar
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    Thanks Bluegrass Picker. However, it looks like this flange would require me to remove the existing PVC pipe and replace it with this one. I was hoping to just install a new ring and not have to mess with the PVC pipe.

  6. #6
    DIY Junior Member Matt613's Avatar
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    Maybe another thought if I have to replace the PVC pipe...the current PVC flange fits into a 90 degree elbow. Do you think I would have any success in cutting the PVC flange off flush with the 90 degree elbow and then removing the piece of PVC from the elbow? If I could do that, I could just install a whole new closet flange into that elbow. By the way, I don't want to remove that elbow unless I have to as it goes under the subfloor, under a wall and would be a pain to replace.

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