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lbjgh · Mar 7, 2009, 04:52 PM

The local code permits both the shower and w/c to be wet vented. I talked to the local plumbing inspector and he provided a chart showing 3 fixture units (not including the w/c) can be wet vented off the 2".

The shower is a MAXX Montego 48". This unit leave about 1/4 clearance between the floor and the underside of the I-beam so the floor drain had to be installed from the inside of the show after sliding the shower over the drain opening. I installed a Watts shower drain that I can threaded into the fitting from the inside of the shower.

lbjgh · Mar 7, 2009, 04:53 PM

Double post

massplumber2008 · Mar 8, 2009, 06:44 AM

OK... but did the inspector know that a washing machine would be on the drain line acting as a wet vent for the toilet? In my area, that is not allowed.

May be that it is allowed in your area... ;) Hope so!

OH, and sanitary TEE fittings are not allowed to be used as horizontal drain pipes as when you picked up the shower drain in post #19... no matter what state you live in! Just FYI and for others that may read this thread in the future!

Thanks for update!

MARK

lbjgh · Mar 8, 2009, 05:47 PM

Why would the code in ontario permit the sanitary T or short turn TY? See attached

The washing machine is considered an appliance here. Isn't the vanity wet venting? I can hook the vanity drain above the washing machine stand pipe when I run the drains and vents in the walls.

massplumber2008 · Mar 9, 2009, 02:59 AM

That explained it... you're from Ontario! Codes vary dramatically across the U.S.A. alone... never mind Canada or the UK... ;)

Check on this, but the laundry drain will need to have its own vent. Then the sink vent can wet vent the toilet and shower... just hoping the toilet or shower don't bubble and spit a bit when the washing machine drains past the unvented toilet..?

I don't want to worry you... just want you to have best outcome.

Good luck!

MARK

lbjgh · Mar 9, 2009, 08:20 AM

Thanks again Mark. I'm pretty comfortable with the drain and wet vent layout now. In retrospect It would have been better hydraulically if I used a "Y" and a 90 instead of a short turn "TY" for the shower drain

I'll update down the road... I'll let you know if my washer blows bubbles. ;)

massplumber2008 · Mar 9, 2009, 11:55 AM

Let me know if the TOILET bubbles... washing machine will be fine!

Have a good day!

lbjgh · Mar 11, 2009, 08:31 AM

... update Mark.

The TY is only permitted on a vertical pipe so I installed the Y. Then I installed a dedicated vent for the shower. I left the toilet wet vented by the vanity which was correct.

Haha, I taught my kids some new swear words installing the "Y". ;)

massplumber2008 · Mar 11, 2009, 01:20 PM

I didn't think codes varied that much between countries... ;) Geez! I am so sorry to see you tear that up. I'm impressed that you dug it up though... most wouldn't have!

The toilet is now WET VENTED by the shower... by the way... :p:p This is how I would have done it.. so I am glad to report that you are finally all set... in my eyes anyway!

And just for the future (don't go changing anything,OK?)... that vent fitting should have rolled above the centerline of the drain pipe to be a legal vent... even if only 22.5 degrees. In other words, you should have installed a street 22.5 degree fitting into the vent tee and then piped that into a 90... see picture. Just more FYI...for the NEXT BATHROOM!!

Thank you for popping back to let me know. I appreciate that!

MARK

lbjgh · Mar 11, 2009, 01:59 PM

Thanks for your help Mark.

Almost ready for walls. ;)