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ScottFla40 07-04-2013 06:26 PM

New Shower Drain
 
3 Attachment(s)
Installing a new shower/master bath remodel. I had to install a Fernco to the cast iron drain pipe then to the pvc nipple & drain. My concern is that the new drain will be too high. The top of the drain is 2" above the slab, my framing for my curb is 3" high. Will the 2" height be ok?..

djlandkpl 07-04-2013 07:24 PM

It's not going to work unless you plan on making your pan plus the tile 2" thick. Plus your curb inside the shower will be about 1" tall.

ScottFla40 07-04-2013 07:43 PM

Quote:

Originally Posted by djlandkpl
It's not going to work unless you plan on making your pan plus the tile 2" thick. Plus your curb inside the shower will be about 1" tall.

Suggestions??...

djlandkpl 07-04-2013 07:50 PM

Can you describe what is below the slab or post some clear photos?

Is the Fernco connected to the trap or a straight run of pipe? You need to get the drain height lower. It might involve breaking out the concrete to get at more of the pipe.

ScottFla40 07-04-2013 08:00 PM

1 Attachment(s)
I am in Florida. Under the slab is grade. I already chipped out the concrete and took 2" off the cast iron pipe. Its a vertical pipe coming from under the slab. A little background for you. The original 3 piece pvc drain was just set on the cast iron drain pipe, no okum, nothing. Just lifted right out when I chipped out all the old mortar bed. The pic is before I chipped out the concrete & cut the drain down 2"...

djlandkpl 07-04-2013 08:05 PM

You need to cut more off the cast iron so you can get the drain to the finished height of your floor.

Hopefully one of the pro plumbers will stop by and give more ideas.

ScottFla40 07-04-2013 08:10 PM

I mean if I have to cut more pipe I am going to have to chip out almost all the way to grade... Eeeek!!!!...

TheEplumber 07-04-2013 08:30 PM

Why is the drain body so tall? Can't you find a lower profile?

ScottFla40 07-04-2013 08:38 PM

Quote:

Originally Posted by TheEplumber
Why is the drain body so tall? Can't you find a lower profile?

The original pvc drain was literally just set on top of the cast iron drain pipe. I wanted to add a Fernco, 2"x 2", then a 1" nipple of 2" pvc into the bottom of the new drain & into the Fernco.

TheEplumber 07-04-2013 08:41 PM

You should use a 2" drain body only- it will attach directly to the pipe- no nipple needed.
That drain looks like a 3" with a bushing in it

ScottFla40 07-04-2013 08:46 PM

Quote:

Originally Posted by TheEplumber
You should use a 2" drain body only- it will attach directly to the pipe- no nipple needed.
That drain looks like a 3" with a bushing in it

Its 2". So the 2" drain body would just rest on top of the pipe?. No Fernco needed?. That's how the original drain was, just set on top of the pipe...

TheEplumber 07-04-2013 09:18 PM

There are multiple drain bodies available. Looks like yours has a hub on it and you glued a pipe stub into it. this makes your drain a couple inches taller.

you want a body without the hub- the outlet is the same diameter as the pipe.
You then connect the body directly to the pipe in the ground using a no-hub coupling- it's the same as the fernco except it has an exterior shield to it. Much better than a normal fernco

ScottFla40 07-05-2013 03:40 PM

3 Attachment(s)
So here is the hopefully finished product. Took off more of the cast pipe. I have a 1/2" between slab & drain.

oh'mike 07-05-2013 03:55 PM

E-Plumber--that is a membrane clamp drain for 2" PVC---

Scot---You will not want to hear this, but I'll bet you already have it figured out---

Open the concrete---cut out the old P-trap and change it to PVC---then everything will work right and you will eliminate the rusty old trap from your life.

Rent a large chipping hammer or a jack hammer and be on the way---

How to build a shower - Building a shower pan with pre-sloped mortar bed, liner and curb.

ScottFla40 07-05-2013 04:29 PM

Quote:

Originally Posted by oh'mike
E-Plumber--that is a membrane clamp drain for 2" PVC---

Scot---You will not want to hear this, but I'll bet you already have it figured out---

Open the concrete---cut out the old P-trap and change it to PVC---then everything will work right and you will eliminate the rusty old trap from your life.

Rent a large chipping hammer or a jack hammer and be on the way---

How to build a shower - Building a shower pan with pre-sloped mortar bed, liner and curb.

Mike,

I appreciate the link. I guess I am just looking for the answer if 1/2" is low enough above the slab.

I am not planning on chipping out and replacing the cast with pvc. As far as I am concerned that is asking for trouble especially being that I do not have a basement to go in and look where the cast ends. I feel that that the direction I am headed & the work I have done is ok to this point.

So is anyone willing to answer my original question of is 1/2" ok??


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