Different standpipe sizes?

mike04gt · Jan 4, 2009

Hey All,

Just wondering if anyone knows if they make a standpipe back seal in any other sizes than 4"???

My drain opening in the floor is 4.5", but I cannot locate any other larger sizes online or at any of the local plumbing stores.

Thanks~

Kingsotall · Jan 4, 2009

Gonna need a pic so we can see the type of pipe you have.

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hj · Jan 5, 2009

seal

That's because there is no 4 1/2" pipe. The next size above 4" is 5" and it is such a rare beast, that 6" is most likely to be found.

Gardner · Jan 5, 2009

I think he's talking about the opening in his floor drain, not the pipe it's connected to.

From the other thread where this all came up https://terrylove.com/forums/showthread.php?t=25408&page=3, I would assume this is an old cast iron drain installed originally in the 20s or so.

SewerRatz · Jan 5, 2009

That is 4" ID pipe Go ahead and buy the stand pipe adapter, tighten the screws a bit so its will fit in snug, once you get it in the pipe tighten the screws, the rubber will expand enough to make a seal.

mike04gt · Jan 5, 2009

gardner said:
I think he's talking about the opening in his floor drain, not the pipe it's connected to.

From the other thread where this all came up https://terrylove.com/forums/showthread.php?t=25408&page=3, I would assume this is an old cast iron drain installed originally in the 20s or so.

Yea, its an old cast iron floor drain that measures an odd 4 1/2" opening size.

SewerRatz said:
That is 4" ID pipe Go ahead and buy the stand pipe adapter, tighten the screws a bit so its will fit in snug, once you get it in the pipe tighten the screws, the rubber will expand enough to make a seal.

Just wanted to make sure it can fit before I buy one, thanks alot!

Different standpipe sizes?

mike04gt

New Member

Kingsotall

Plunger/TurdPuncher

Sponsor

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hj

Master Plumber

Gardner

DIY Senior Member

SewerRatz

Illinois Licensed Plumber

mike04gt

New Member

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