Shower help please is hubby right?

[DIYMissus]

Hi we're installing a new shower pan and need to move the drain. Hubby says we should connect to the old trap I think we should remove it and run a new drain tying into the existing line.

Also can the shower pan be secured to the nailer strips in the ICF wall?

Thanks in advance.
Cynthia

 

[John Gayewski]

Where does that horizontal pipe go? It's piped incorrectly and should be repiped anyway.

If that horizontal pipe is also a drain for the lavatory then you just need to change the fitting type. If it's a dry vent it needs reconfigured.

 

[Sponsor]

 

[Reach4]

I don't see how you would keep the existing trap, and feed it from the red circle location.

 

[DIYMissus]

Where does that horizontal pipe go? It's piped incorrectly and should be repiped anyway.

If that horizontal pipe is also a drain for the lavatory then you just need to change the fitting type. If it's a dry vent it needs reconfigured.

Thanks for your help It's a dry vent - I marked it. The drain goes directly to the main sewer line .

 

[wwhitney]

Thanks for your help It's a dry vent - I marked it. The drain goes directly to the main sewer line .

So a dry vent needs to come off the drain vertically, and isn't allowed to go horizontal until 6" above the fixture flood rim. Therefore your shower vent needs to be redone, in the context of which relocating your shower trap is a small matter.

Cheers, Wayne

 

[DIYMissus]

I don't see how you would keep the existing trap, and feed it from the red circle location.

Something like this.

 

[Breplum]

Something like this.

No. the vent has to be off the trap arm. You need professional help.

 

[DIYMissus]

No. the vent has to be off the trap arm. You need professional help.

 

[DIYMissus]

So a dry vent needs to come off the drain vertically, and isn't allowed to go horizontal until 6" above the fixture flood rim. Therefore your shower vent needs to be redone, in the context of which relocating your shower trap is a small matter.

Cheers, Wayne

Thank you I'm looking at some proper schematics. Since this is an ICF house I see why they didn't run the vent up an exterior wall.

 

[John Gayewski]

Thank you I'm looking at some proper schematics. Since this is an ICF house I see why they didn't run the vent up an exterior wall.

It doesn't need to be an exterior wall. Any wall will do. You need to start with a location you can run a dry vent or a location where you can cut into the bathroom group piping to convert to a horizontal wet vent configuration.

 

[DIYMissus]

I'm sorry I wasn't clear i should have said the logical place would have been to run the vent up inside the exterior wall directly behind the shower drain . Converting to a wet vent is beyond my current skill level tbh. I think I see a straightforward way to keep it as a dry vent I will post a picture tomorrow Thanks again.

 

[Reach4]

Converting to a wet vent is beyond my current skill level tbh. I think I see a straightforward way to keep it as a dry vent I will post a picture tomorrow Thanks again.

A wet vent is not as complex as it sounds. It is pretty much joining the lavatory drain to the trap arm, which wet vents the shower.

 

[pritchardsplumbing]

Running the vent up inside the exterior wall directly behind the shower drain does sound like a logical approach, especially if converting to a wet vent is beyond your current skill level. If you've found a straightforward way to keep it as a dry vent, that's great.

 

[DIYMissus]

@Reach4 @pritchardsplumbing @John Gayewski @wwhitney

Thank you for your help This is my plan based off of your advice. Please excuse my horrible drawings.

 

[John Gayewski]

@Reach4 @pritchardsplumbing @John Gayewski @wwhitney

Thank you for your help This is my plan based off of your advice. Please excuse my horrible drawings.

Yes looks good.