Inside diameter of cast iron pipe is 3.75” what size toilet flange will work?
- Thread starter TopDog
- Start date
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I think this will work:
https://www.siouxchief.com/docs/def...oset-flange---pushtite.pdf?sfvrsn=a1523037_22
https://www.siouxchief.com/docs/def...oset-flange---pushtite.pdf?sfvrsn=a1523037_22
arctic bill
Well-Known Member
do you have assess to ceiling below ? if so i would remove it and put a three in plastic pipe in its place .
RickFlorida
Well-Known Member
This is what they call a 4 inch cast iron drain pipe. (The total OD). So this is very common. I highly recommend you use one of these.... Buy Toilet Repair Parts
Another helpful tip because there's usually nothing to screw the flange down into is I purchase at Home Depot or Lowes a tube of that really expensive epoxy construction adhesive (comes in the tubes you use a caulking gun in). It's 25 dollars a tube but this epoxy is like concrete so I just fill up all underneath the flange and since the inside of this flange compresses with screws... you are good to go!
Another helpful tip because there's usually nothing to screw the flange down into is I purchase at Home Depot or Lowes a tube of that really expensive epoxy construction adhesive (comes in the tubes you use a caulking gun in). It's 25 dollars a tube but this epoxy is like concrete so I just fill up all underneath the flange and since the inside of this flange compresses with screws... you are good to go!
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The Oatey adjustable flange has an OD of 3.70 inches. On the Home Depot Q&A for that flange, Oatey said it wouldn’t work and they don’t have anything that would work!
This is on the ground floor, it is concrete. I wonder if this pipe was made in Mexico?
i just bought the house. I’m going to ask neighborhood Facebook group if anyone else had trouble with this but the Sioux Chief flange looks like it will work. Ordered one from Lowes, $6 cheaper than Ace Hardware. Gonna put a bead of caulking around the flange and floor… wonder why they don’t make a gasket? Seems like a plunger would cause it to backflow past the inner Sioux Chief gasket?
House also had asbestos floor tiles and black mastic tile residue but that’s another story. (I’m going to use expensive primer especially made for covering up black mastic and paint the floor. This is going to be a rental.)
This is on the ground floor, it is concrete. I wonder if this pipe was made in Mexico?
i just bought the house. I’m going to ask neighborhood Facebook group if anyone else had trouble with this but the Sioux Chief flange looks like it will work. Ordered one from Lowes, $6 cheaper than Ace Hardware. Gonna put a bead of caulking around the flange and floor… wonder why they don’t make a gasket? Seems like a plunger would cause it to backflow past the inner Sioux Chief gasket?
House also had asbestos floor tiles and black mastic tile residue but that’s another story. (I’m going to use expensive primer especially made for covering up black mastic and paint the floor. This is going to be a rental.)
RickFlorida
Well-Known Member
Oh maybe I'm wrong? Sorry. I just looked this up and the outside diameter of barrel is 4.3? But if this is a standard 4 inch cast iron pipe, just buy this flange please and you are fine. https://www.grainger.com/product/41...VsEwmBUIuB_Png2TkCsaAhiFEALw_wcB&gclsrc=aw.ds
RickFlorida
Well-Known Member
Did you ever sort it out? What did you use if so please?
