Building My Own House

[Jennie McNeill]

Hello! I live in Coastal NC and I am building my own house. I'm ready to plumb it. I have done basic plumbing repair before but never a full rough-in to finish and I have some questions. Hoping to find some answers here. Thanks!

 

[breplum]

Slab on grade or frame on foundation?

 

[thatdarncat]

Fire away, I live in south carolina and built my own home( it passed inspection)

 

[Jennie McNeill]

Slab on grade or frame on foundation?

 

[Jennie McNeill]

Frame on block foundation. The clearance in the crawlspace is 18" minimum. There is a slope in the land, and there is actually 3.5' of crawlspace clearance on the end of the house where will be no plumbing. I'm toying with the idea of building a little storage bunker in there with a trap door under a rug in my office area.

 

[Jennie McNeill]

Fire away, I live in south carolina and built my own home( it passed inspection)

It's the venting that concerns me. I want to run only one 3" vent pipe through the roof. I know this is sufficient for two sinks, a shower, a commode, and a washer. (At most only two of these would ever run at once anyway.) I think I can wet vent the shower to the commode and make that connection to the vent stack under the house. Then dry combo vent the sinks to the vent stack (they are on either side of a wall), then finally dry vent the washer to the stack and punch that through the roof. Does that sound like it will work? Or am I asking for septic gas in my house with running it all through the same stack? I was going to do a complete wet vent system until I learned code forbids my kitchen sink being in with the commode.