Fightintxag
Mech Engineer
This may belong in the shower/bath forum. Feel free to move it if necessary.
I'm remodeling my master bath. As part of this bath redo, the shower will be expanded. The old shower floor is recessed in the slab. So in order to change the shower footprint, I'll have to bring the recess up to level. That means the shower drain's riser will be extended up another 6" or so.
I chipped up the concrete to extend the riser and replace the shower drain (going to use the kerdi drain and membrane) and saw that I have a cast iron riser. After seeing a lot of suggestions that it'd be wise to replace the cast iron p-trap with pvc while I have the concrete busted up, I decided to do that. I finally uncovered the p-trap about 3' below the drain. Here's a couple images:
You can see 2 horizontal and 1 vertical connection of some sort (the pipe flares out and there's a rubber ring that normal 2" diameter pipe come out of). I'm planning to cut the pipe between the 2 horizontal fittings and transition to pvc using a no-hub.
After extending the riser, I'm looking at the p-trap being 3'6" or so below the shower drain.
Question 1Is there any problem with my plan to cut the pipe and reconnect pvc using the no-hub in the area between those 2 horizontal couplings?
Question 2Is there a problem with having the shower p-trap 3'6" or so below the drain? Seems awfully deep to me, but I never had any issues with the old setup 3' below the drain.
Question 3If the answer to Question 1 is "yes, there is a problem", what should I do? Should I jog the horizontal pipe up with elbows so that the p-trap is shallower than the original is?
Thanks,
Scott
I'm remodeling my master bath. As part of this bath redo, the shower will be expanded. The old shower floor is recessed in the slab. So in order to change the shower footprint, I'll have to bring the recess up to level. That means the shower drain's riser will be extended up another 6" or so.
I chipped up the concrete to extend the riser and replace the shower drain (going to use the kerdi drain and membrane) and saw that I have a cast iron riser. After seeing a lot of suggestions that it'd be wise to replace the cast iron p-trap with pvc while I have the concrete busted up, I decided to do that. I finally uncovered the p-trap about 3' below the drain. Here's a couple images:
You can see 2 horizontal and 1 vertical connection of some sort (the pipe flares out and there's a rubber ring that normal 2" diameter pipe come out of). I'm planning to cut the pipe between the 2 horizontal fittings and transition to pvc using a no-hub.
After extending the riser, I'm looking at the p-trap being 3'6" or so below the shower drain.
Question 1Is there any problem with my plan to cut the pipe and reconnect pvc using the no-hub in the area between those 2 horizontal couplings?
Question 2Is there a problem with having the shower p-trap 3'6" or so below the drain? Seems awfully deep to me, but I never had any issues with the old setup 3' below the drain.
Question 3If the answer to Question 1 is "yes, there is a problem", what should I do? Should I jog the horizontal pipe up with elbows so that the p-trap is shallower than the original is?
Thanks,
Scott
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