Toilet Drainage

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oconnocf

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• Jul 25, 2008

• #1

I am installing all new plumbing on the third floor of my house. I am installing a toilet about 8 feet away from the existing stack. Is there a code for the initial drainage pipe drop from the toilet to the horizonatal line? I know the slope after the drop is a 1/4" per foot.

 

Terry

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• Jul 25, 2008

• #2

The total devolped length of pipe between the vent, and the flange can be six feet.

 

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• Jul 25, 2008

• #3

Thanks for the quick response. What about right below the toilet, does there need to be an initial straight vertical drop or can I 45 it and then do my slope?

 

Terry

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• Jul 25, 2008

• #4

You can angle it. Or drop it straight for a while.

 

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• Jul 25, 2008

• #5

Thanks for the help Terry!

 

Redwood

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• Jul 25, 2008

• #6

They even make a flange with a 45 elbow built in...
Make sure that if you use a PVC/ABS flange that you use one that has a stainless steel ring...

 

Last edited: Jul 25, 2008

topshot

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• Nov 12, 2008

• #7

Redwood said:

Make sure that if you use a PVC/ABS flange that you use one that has a stainless steel ring...

Click to expand...

Why? PVC won't rust either or are you saying it will eventually crack/break?

 

Terry

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• Nov 12, 2008

• #8

Why? PVC won't rust either or are you saying it will eventually crack/break?

Click to expand...

We do see some bad plastic flanges later on.

 

topshot

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• Nov 12, 2008

• #9

OK. Is one stainless model any better than the others or will pretty much any flange with a SS ring from a big box suffice? I'll be going into 3" PVC (and won't be getting one that fits inside the pipe ).