In need of a little help....

[mixman812]

First let me start by saying thank you to everyone here....I've been flipping homes over 20yrs and cannot tell you how many times I have lurked and referenced this site for help!!! My question is basically if I am plumbing this double bathroom correctly? I am dropping both wc's (3in) into the wet vent 1 directly and one downstream about 13 in or so. On the right (1stpic with the size reference) the b2b vanity's (2in) will also dump into the wet vent (3in) as well. The final tie in will be the tub on one side and shower on the other side of the wall into a (2in) wet vent then terminating into the main line (3in). Each fixture will have its own vent through the roof as you can see. So 1 vent for both vanity's...1 vent for the wc's.....and 1 vent for the tub/shower as well. Looking for opinions or suggestions to make sure no traps will be evacuated when flushing or using any fixtures. Thank You!

 

[mixman812]

 

[mixman812]

 

[havasu]

Could someone with knowledge help this member?

 

[mixman812]

Thank you

 

[havasu]

I'm sure the knowledgeable members are currently at work. Stand by...

 

[Helper Dave]

I don't like to comment too specifically on stuff like this, since I'm in WI, and we have our own code, but just based on some general principles, my big concern is with the toilets.

Obviously, dig into your code a bit and check, but when venting toilets together like that (called a common vent in my code), they need to tie together at the same level. Generally, dropping any pipe before it hooks to its vent fitting will kill off the vent, and the way you have them, that lower one would certainly get blocked (simultaneous use with toilets is not unheard of).

I believe your best option would be to drop them both into a double wye (double tees are not permitted for back to back toilets), then long sweep 90 down to your main run.

Also, can't really see what's going on with your showers, but the same principles apply.

 

[Helper Dave]

I'm sure the knowledgeable members are currently at work. Stand by...

Got all that in on my lunch

 

[CT18]

No tee on the horizontal i believe is in the one picture. Also if that vent is for the tub then technically offset 6" above flood level. The vent is fine for the toilet. That is in my area IPC

 

[mixman812]

thank you all!!! i appreciate the help!!