Review of DWV plan

[Nicholasrellim]

Hi all. I’ve attached some pics of my DWV plans. To explain my sketchy sketches, first 2 pics show the bathrooms I’ll be installing. 3rd is the overall layout of the house with the existing pipe. This is a concrete slab house, so all of this is in the ground. That said, I can move anything anywhere it needs to be, just want to minimize the cutting and digging. I’m plenty familiar with installing pipe, but always from someone else’s plans. This is my first go at designing my own. I drew this up as the simplest thing that would work. Let me know if I’m all wrong, or there’s a better way! BTW I’m in Florida. I believe we use IPC codes.

 

[WorthFlorida]

https://terrylove.com/forums/index.php?threads/max-trap-arm-length-for-a-shower-drain-2.4013/

The toilets will need a vent.

https://www.co.lincoln.or.us/sites/..._-_helpful_hints_residential_construction.pdf

 

[Sponsor]

 

[Nicholasrellim]

Thank you! Those links have some great info. I realized that I can add a vent between my tub and shower and get the trap arms shorter. Not to mention less digging! Still confused on the ipc and upc difference on length. But shorter is better. I’m still confused on wet vents. Thought the way I had it counted as wet vent for toilet. I’ll read up and revise the plan. Thanks again!

 

[Nicholasrellim]

Made some changes to the plans. On my north bath, the smaller one, I just can’t see any better way of doing it. Could add a second vent near toilet, but it seems unnecessary. Also revised for the actual location of the 3 inch existing pipe. Got it dig up today and it actually a few inches off of where I originally thought. On the south bath, it became obvious that I should place a vent between the tub and shower. Can that same vent continue to the toilet, or is the one labeled rev2 a better plan? On the north bath, it seems to meet the same conditions as the digram below. I’m sure I’m missing something. Any advice is appreciated!

 

[Nicholasrellim]

Been reading everything I can find and this wet vent thing has me confused!

 

[Terry]

North bath, the lav run with 2" wet vents the toilet and the shower.

South bath, I like the drawing with the shower trap arm that wyes off from the tub line. Less pipe and fittings.
I prefer a toilet to wye off and end with a 90 up. Most of the time you don't have the vertical to drop it into a wye fitting and absolutely not a santee.
Since you have a kitchen upstream of the South bathroom, the bathroom fixtures get their vents before entering the main line passing through.

 

[Nicholasrellim]

Excellent. Thank you! I’ve got the vertical clearance to put a wye on the south toilet, so all good there. I really appreciate the advice!