[remodeler1]

I would like to install a P-trap about 18 inches from a tub drain. This would involve putting a 90 degree elbow on one side of the p-Trap so that I could use it in a horizontal run. That is the p_trap would be something like a running trap but using a P trap. Ia this permitted. If not what type of trap is permitted on a horizontal drain ru.

[massplumber2008]

Hi Remodeler...

As I am guessing you suspected, a "running trap" is not allowed under any circumstance in plumbing.

In your case you need to install a PTRAP directly under the tub waste and overflow assembly of the tub to follow plumbing code requirements.

How are you venting the tub drain? Let us know.. OK?

Mark

[remodeler1]

Hi Mark,
I cannot find where the code requires the trap to be installed directly under the tub overflow. Can you identify where this is stated? I will install a dry vent. I have been told that you can run from tub drain horizontally less than 2 feet th

[remodeler1]

Hi Mark,
Sorry about the incomplete message above. The following is what it should have stated in total
I cannot find where the code requires the trap to be installed directly under the tub overflow. Can you identify where this is stated? I will instal

[speedball1]

That is the p_trap would be something like a running trap but using a P trap. Ia this permitted. If not what type of trap is permitted on a horizontal drain ru.

My local code would allow a running trap, (see image) if aspproved. The only other type of trap used on a horizontal drain would be a drum trap, (see image) If you're attempting to stay in code call your local Building Department and check. Good luck, Tom