Stu27
New Member
I just started my master bathroom remodel. I am an experienced DIYer, but have no experience with DWV design or code.
The remodel includes relocation of all three fixtures. I've attached a drawing of the current as-built configuration of the three fixtures and DWV layout. I'm not sure the original as-built DWV design meets code and wish to correct any deficiencies, if any, during the remodel (i.e. should the 1.5" bath drain be upgraded to 2" drain, was the bath vented adequately?…I recall it drained slowly).
Also attached is a drawing of the new fixture locations. This drawing includes my attempt at an initial DWV layout. My thoughts are to locate the new sink drain in a half height false wall to keep the pipes in a heated space this side of the attic wall and to vent the new sink into an existing 3 inch vent stack (not shown) about 2 feet on the other side of the attic wall. I shortened the shower drain routing as compared to the previous tub routing, but the vent is still pretty far away from the trap… not sure what is acceptable here… if the shower trap needs to be closer to the vent, then routing from shower drain horizontally to the right (in the drawing) is an option to shorten the distance from drain to vent.
The new toilet location seems to present a challenge in getting the wc flange in the desired location (for me anyway). I'd prefer to toilet be centered between the left-side finished wall and the new right-side cabinet. I have not been able to figure out a tie-in to the existing waste pipe that allows the wc flange to be located in the ideal position, currently I have about a 2 inch offset.
Looking forward to the forum's advice on how to tackle the DWV design and also how to get that wc flange in the ideal spot to keep the toilet centered.
Thanks,
Stu
The remodel includes relocation of all three fixtures. I've attached a drawing of the current as-built configuration of the three fixtures and DWV layout. I'm not sure the original as-built DWV design meets code and wish to correct any deficiencies, if any, during the remodel (i.e. should the 1.5" bath drain be upgraded to 2" drain, was the bath vented adequately?…I recall it drained slowly).
Also attached is a drawing of the new fixture locations. This drawing includes my attempt at an initial DWV layout. My thoughts are to locate the new sink drain in a half height false wall to keep the pipes in a heated space this side of the attic wall and to vent the new sink into an existing 3 inch vent stack (not shown) about 2 feet on the other side of the attic wall. I shortened the shower drain routing as compared to the previous tub routing, but the vent is still pretty far away from the trap… not sure what is acceptable here… if the shower trap needs to be closer to the vent, then routing from shower drain horizontally to the right (in the drawing) is an option to shorten the distance from drain to vent.
The new toilet location seems to present a challenge in getting the wc flange in the desired location (for me anyway). I'd prefer to toilet be centered between the left-side finished wall and the new right-side cabinet. I have not been able to figure out a tie-in to the existing waste pipe that allows the wc flange to be located in the ideal position, currently I have about a 2 inch offset.
Looking forward to the forum's advice on how to tackle the DWV design and also how to get that wc flange in the ideal spot to keep the toilet centered.
Thanks,
Stu