Hackney plumbing
Homeowner
Thank you guys for the input, Hackney even I can understand your visual aid. There's no doubt in my mind if you had professional drawings you could assemble it, box it and send installation instructions. Understand your major and minor for the laundry, and the revent or not if it will keep the code man happy, I will do it. The one thing I still don't have clear is venting the shower, someway I can tie it back into the three-inch stack with the cleanout or should I just vent it separately.
I stated in my first posting this site had become my favorite forum, It's all because of folks like you who will contribute your knowledge to a perfect stranger and contributors like Hackney Plumbing who says maybe the guy will understand if I go out in my yard and lay it out and take a photograph of the layout and posted it. May be it will help the retired old man do what he loves to do; work hard every day and stand back in the evening and looked at his accomplishments with help of others.
Thanks
Norm
Glad I could help! To vent the shower just install a wye between the connection to the main building drain and the P-trap for the shower. Part of this wye will be used to extend a vent to any wall and up.
The idea is to place the vent between the trap and the connection to the larger building drain. This will protect the p-trap from siphonage.
If this is not clear I will snap you another pic and show the shower. It can vent seperate or you could revent it back into the 3" stack....atleast 42" above the floor.