Howdy!

Let me run this by the plumbing experts...

I found a 54" x 30" bathtub that fits in my existing shower space (60" x 30"). Unfortunately, I would have to remove two (2) walls to get a standard size tub in there.

I will build a PT 2" x 4" frame and cover with PT 3/4" plywood to raise the height 4" so I can use the existing shower drain.

I will use the "L" or "foot" (overflow and drain unit) and run 1 1/2" PVC into the existing drain.

My question is this: do I need a P trap? Or will gravity work for me as it does in the existing shower?

Any other comments and / or concerns?

Thanks in advance... Geo

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Originally Posted by ramcharger392

Howdy!

Let me run this by the plumbing experts...

I found a 54" x 30" bathtub that fits in my existing shower space (60" x 30"). Unfortunately, I would have to remove two (2) walls to get a standard size tub in there.

I will build a PT 2" x 4" frame and cover with PT 3/4" plywood to raise the height 4" so I can use the existing shower drain.

I will use the "L" or "foot" (overflow and drain unit) and run 1 1/2" PVC into the existing drain.

My question is this: do I need a P trap? or will gravity work for me as it does in the existing shower?

Any other comments and / or concerns?

Thanx in advance... Geo

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Watch the quality of your pressure treated lumber! That could create a problem down the road when it dries out naturally or even twists/bends. Be sure you have an excessable trap on your drain for service and to keep the sewer gas (natural thing) from coming back through. Make sure your existing sewer line is clean and sealed well...

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My question is this: do I need a P trap? Or will gravity work for me as it does in the existing shower?

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You already have a "P" trap under the slab. If this were my job I would take up the slab and move the trap and raiser over to pick up the tub drain. What you propose to do is to install a "dogleg" in the drain line and that just sets you up for drainage problems. Good luck, Tom

Howdy!

Thanks for the responses.

I have nice and dry and stable pressure treated lumber and plywood.

I did indeed confirm a p trap in the drain line with the help of a drain snake.

The distance from the tub drain "L" and the shower drain is 8 inches. I'd agree with you on moving the drain if it were a greater distance.

BTW - my plumbing in the house isn't that great anyway. It has settled under the slab over the years forming what my plumber called a "belly". It has dropped enough that I have to flush the toilet twice to clear the line.

L8R G8R... Geo