5x7 Bathroom Plumbing Plan Review and sewage pit question.

[James Broadback]

Hello Everyone,

I originally posted a reply on a different thread but it was pretty old and so I figured I should post a new separate thread.

I came across this link in my search and saw Terry's response regarding the pit vent integration. Would the crude plan below be a valid implementation of venting a pit and bathroom overall? I need to run a new VTR and was looking to run one 2" vent through an exterior wall. The drain for the sink would be a 1.5" wet vent with one long sweep 90 degree turn. The size of the proposed bathroom is a 5x7. Would my proposed plan be okay to implement as is? Or do I need to run another VTR. IPC is the code for Pennsylvania.

Thanks,

 

[James Broadback]

Hello Everyone,

I am hoping I can get some feedback soon as I am breaking concrete today. I spent the passed two days digging the hole for the sewage basin and I hit bedrock. It was a long two days ladies and gentlemen! Drilling holes into the bedrock and chipping in every direction I could. Thank God I decided to go with the 24" (which is more like 25.75") basin.

Any info and advice is appreciated.

Happy Sunday, thanks in advance!

 

[Sponsor]

 

[Reach4]

IPC is pretty easy on emergency floor drains, from what I read.

I don't see a problem with your plan. I am not a plumber. You may be using more vents than needed, but extra vents are not bad.

https://wabo.memberclicks.net/assets/pdfs/Plumbing_Venting_Brochure_2018.pdf

 

[James Henry]

The lavatory drain needs to be 2" and the vent for the shower needs to come off the drain vertically or at least a 45 degrees vertically.

 

[James Broadback]

IPC is pretty easy on emergency floor drains, from what I read.

I don't see a problem with your plan. I am not a plumber. You may be using more vents than needed, but extra vents are not bad.

https://wabo.memberclicks.net/assets/pdfs/Plumbing_Venting_Brochure_2018.pdf

Thanks Reach4, I was not sure if I could eliminate the shower vent I figured that if it came after the WC in the chain that it had to be vented. Thank you for venting pdf.

 

[James Broadback]

The lavatory drain needs to be 2" and the vent for the shower needs to come off the drain vertically or at least a 45 degrees vertically.

Thanks James Henry,

I planned on adding the vent for the shower vertically. I was thinking that could be a 1.5" vent that ties into the 2 inch vent. Or should it be 2 inches? I should be able thread a 2 inch vent in that 2x4 wall for the lav it is not load bearing.

 

[James Henry]

Thanks James Henry,

I planned on adding the vent for the shower vertically. I was thinking that could be a 1.5" vent that ties into the 2 inch vent. Or should it be 2 inches? I should be able thread a 2 inch vent in that 2x4 wall for the lav it is not load bearing.

1-1/2" is fine.

 

[James Broadback]

1-1/2" is fine.

Thanks James Henry.

 

[James Broadback]

Thanks James Henry,

I planned on adding the vent for the shower vertically. I was thinking that could be a 1.5" vent that ties into the 2 inch vent. Or should it be 2 inches? I should be able thread a 2 inch vent in that 2x4 wall for the lav it is not load bearing.

Hello James Henry, I wanted to double check and ask a question regarding the lav drain; Is it possible to run 1.5" lav drain to the first and only 90 turn and then run 2" from that turn into the 2" vent? I am making this run today and if I can get away with smaller holes in the 2x4's that would be my preference. My thoughts are that this is not recommended but just wanted to double check.

Thanks in advance for your time,
JB

 

[James Henry]

Yes. That part of the system is considered the trap arm. The pipe that connects to the vent and is below the floor is where the drain starts.

 

[James Broadback]

Yes. That part of the system is considered the trap arm. The pipe that connects to the vent and is below the floor is where the drain starts.

Okay. Thanks. I was not sure but that makes the job a bit easier in terms of the 2x4s.