DWV Review Help

[rsteve12]

Hello Everyone,

I am hoping that someone will review/critique my plumbing layout before I take it to the city and apply for my permit. I also need help determining where to put clean outs. This a a 750 s.f. house on a slab, so I will be cutting concrete. I plan to tie the vents together in the attic and have one 3" stack through the roof. Any advice would be greatly appreciated. Thanks Very Much!

 

[frodo]

 

[Diehard]

@rsteve12...Nice plumbing CAD program you have there. What system is it?
Just an FYI...It's common to use dashed lines to depict vent lines.
You probably noticed that @frodo revised the combined vertical drain pipe serving the LAV and the Kitchen sink to individual drain lines. Would be interesting to know why.

 

[frodo]

@rsteve12...Nice plumbing CAD program you have there. What system is it?
Just an FYI...It's common to use dashed lines to depict vent lines.
You probably noticed that @frodo revised the combined vertical drain pipe serving the LAV and the Kitchen sink to individual drain lines. Would be interesting to know why.

when installing 2 fixtures on a fixture fitting
the barrel of the fitting shall be 2 pipe sizes larger than the trap
that would make him have to use a 3'' pipe in that wall
a 3'' pipe is 3 1/2'' when you put a fitting on the pipe it is 4'' OD
this would require a 6'' wall instead of the typical 4'' wall

so instead of causing all that drama with the cabinet maker's cabinets being 2'' off.
just use 2 pipes.

 

[rsteve12]

Thanks so much for the replies.

Diehard, that is Google Sketchup I am used for the drawings. I really like it. I drew the fittings myself. Thanks for telling me about the dotted lines.

Thanks a lot Frodo, I was wondering where to put clean outs. And I kept searching whether the law and kitchen sink can share a drain.

I am ready to cut concrete.

Thanks Again,
Russell

 

[frodo]

The lav and sink can share the same drain.
the pipe coming out of the ground would have to be 3''
and the fitting used is not a cross it is called a fixture fitting


Clean out for your dishwasher should be at 4' from the floor
so that it is accessible with out moving the washer

kitchen sink gets a co. always

 

[rsteve12]

Is it acceptable to have the top of the fitting flush with the top of the concrete, as seen in attached?

 

[frodo]

sure,will not hurt a thing
but
if that is for a cleanout, it is to high, te clean out itself will be a tripping hazard

here is a solution... lay a wye on its side, then use a street 90 off the side of the wye
installed looking up.
now you have enough room to install the clean out flush with the floor