COMMUNITY FORUM

BV004115

11:28AM | 07/07/14
Bvplumbing
The existing plumbing is cast iron underground and ABS above ground. I will be replacing a portion of the underground piping with PVC and a portion of the above ground with PVC as well. I decided to just redo all the existing cast iron I could expose as part of a good practice measure.

As I dug into everything, I found that there may have been a toilet installed at one time where I am hoping to put a new one at, the only issue is there was concrete poured down the hole so it was not usable, so all new fitting were going to have to be installed.

My biggest concern is making sure I can pass code with how everything will be installed. I am hopeful that the existing vent for the old toilet will be sufficient for venting and pass code. I am okay if I need to add separate vents for the toilet and the shower, but would love it if I could just use what is existing.

The existing 1-1/2" vent seems to attach to the 3" main stack in the top floor wall somewhere above all fixtures, and the 3" main stack is vented through the roof. absolutely no water comes through that vent (not a wet vent)

Also, as far as installing the new toilet, should I use a 3" sanitary tee with a cleanout or would a 3" 90 long radius elbow be okay? not sure how often that clean out will be accessed if I am pour concrete back over everything.

See the attached pictures - I tried to get shots of what is currently installed (I will be replicating this design for the new install, but will be adding flange for toilet and drain for a new shower.

Looks like i can only post one picture at a time. I'll do another post with existing plumbing
Basement_bathroom_new_dwv_system

Sylvan

03:48PM | 07/08/14
Member Since: 01/24/06
1558 lifetime posts
Me_office1
" I will be replacing a portion of the underground piping with PVC and a portion of the above ground with PVC as well. I decided to just redo all the existing cast iron I could expose as part of a good practice measure."

Good practice?? Lets think about it your going to remove long lasting ,recyclable non flammable cast iron and install PVC that has very short radius fittings that are prone to stoppages and lots of noise and gives off toxic fumes when on fire and the glue and primmer are known carcinogenic materials and your wondering about venting by code .. Amazing

BV004115

05:04PM | 07/11/14
The house was built in the 50's and the cast iron is cracked and leaking at the joints- so yes, i will be replacing portions of the cast iron.

LarryG

09:14AM | 07/12/14
Member Since: 07/22/04
530 lifetime posts
Use cast iron and make sure it didn't come from China.
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