Toilet Question

[Stan R]

What is the normal size of the PVC drain line for the toilet.
Residential construction

3, 3.5 or 4

Thanks

[TXhunter77]

3

[recar]

normally it is a 4" opening at the flange and connects to a 3" PVC... but some older homes have 4" pvc pipe for sewer.

[L3pro]

normally it is a 4" opening at the flange and connects to a 3" PVC... but some older homes have 4" pvc pipe for sewer.

^^^^^

[Stan R]

Has anyone ever used the Fenco Waxless toilet seal FTS-3 or FTS-4

[TXhunter77]

Has anyone ever used the Fenco Waxless toilet seal FTS-3 or FTS-4

I have never messed with it. I still like using wax rings

[cvanbrunt]

Paging Ty729...... Clean up on Aisle 9 please

I just had a piece of line replaced in my bathroom while I also replaced the flange and toilet, it was all 3".

[Mayhem]

Paging Ty729...... Clean up on Aisle 9 please

I just had a piece of line replaced in my bathroom while I also replaced the flange and toilet, it was all 3".

I sure hope Todd can answer this question.

[Todd-ty729]

normally it is a 4" opening at the flange and connects to a 3" PVC... but some older homes have 4" pvc pipe for sewer.

So far all correct info but this seems to cover it very well.

3" or 4" will work



With modern water saver toilets a 3" main horizontal drain line is best. Goes against most of the old established thoughts of bigger is better.

The vertical drop from the floor flange to the 90 degree turn is best to use 4". Gets stuff out of the toilet better which is the most common issue with the new commodes.

[SwampRabbit]

Did you buy the toilet from the classifieds section? I think that makes a difference