Washer drain code

[Travis Hardy]

I have seen some pictures showing a min of 6in needed from p-trap and the vent T on a washer drain. See Pic. However, I have not seen the actual code stating this. Is this correct(picture) or do I need to extend the arm a min. of 6in into the next stud bay?

 

[Breplum]

I've never seen a distance. Not an issue. your photo has the tee upside down.

 

[Sponsor]

 

[GReynolds929]

Minimum distance from trap wier to vent opening is twice the pipe diameter, so 2" pipe needs 4". You can be pretty near hub to hub and meet this requirement.

 

[Reach4]

Your santee (sanitary tee) is upside down.

Also, that 4 inches is measured from a lot farther apart than your red lines are.

On an older thread, we discussed some p-trap issues to avoid crown vent. https://terrylove.com/forums/index.php?threads/adjusting-washer-standpipe-position.90807/ The table in post #7 dimension F shows the minimum for the cited parts. That is for a 2 inch glued trap.

 

[Travis Hardy]

I've never seen a distance. Not an issue. your photo has the tee upsi

 

[Travis Hardy]

Thank you for the clarification on the distance. Yes, the santee is not correct in the picture. I was out of 2"x2"x2" santee so I stuck a 2"x2"x1.5" in quick just for the picture. It will have a 2" vent and 2" drain when glued.

 

[GReynolds929]

You only need a 1 1/2" vent for a 2" trap. The existing tee works fine as long as the 1 1/2" runs up for the vent.

 

[Jeff H Young]

I took alook and couldnt find the 2x pipe size rule for IPC but thats what we live by in UPC code . Because the measurement is from the edge of the vent to the edge of the trap wier the fittings can darn near be hub to hub Im going to say an inch between them is plenty and some p traps have a really long 90 that Im sure would allow both hubs touching but havent seen them lately