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JohnnyAppleseed · Sep 2, 2006, 09:28 AM

Hi guys.

So, I need to replace a basement shower with a bathtub. I replaced tubs before, not that hard.
However, I've never quite done this, and I'm concerned about the drain. Obviously, I'd like to move it a bit, maybe a foot or so. How hard is it to adapt what's there to a bathtub drain.

Are they easily compatible..?

Will there be many issues mating old to new..?

Any bits of info, or things I need to look out for..?

Thanks guys... :)

speedball1 · Sep 2, 2006, 10:24 AM

Not having any details makes it difficult to answer your questions. What material are the pipes? How far does the old shower drain set from the side wall? The front wall? Or can the walls be moved to accommodate the tub trap and raiser? The average tub rough in is a 12 X12" dap out hole in the floor that the trap and raiser sets in. The center of the raiser wants to be 15 1/2" off the side wall plate and 1 1/2" off the fromt wall plate.
Regards, Tom

JohnnyAppleseed · Sep 2, 2006, 10:44 AM

Hi speedball1,

Ok, it's like this. The existing shower is perhaps 3x3(ish), with the drain dabsmack in the middle. As the shower is currently sitting on top of the drain, I do not yet know for sure what is under there. The shower itself is all done in tile, as opposed to these new 'kits'. I have enough room to simply center the tub right over the drain, but it is not the most efficient use of the available space.

Thanks...

speedball1 · Sep 2, 2006, 10:57 AM

If you do that you will have to beat out a 12 X12" hole around the shower raiser since the tubs drain assembly will connect undedr the floor line. The trap's underneath the cement and will serve the tub. Regards, Tom

JohnnyAppleseed · Sep 2, 2006, 01:21 PM

Thanks for the info, Tom.

How about the fittings..? Are there fittings designed for just such a project, to mate the two systems properly, or will I need to make it up as I go along..?

Thanks again.

speedball1 · Sep 2, 2006, 01:40 PM

Originally Posted by JohnnyAppleseed

Thanks for the info, Tom.

How about the fittings..?? Are there fittings designed for just such a project, to mate the two systems properly, or will I need to make it up as I go along..??

Thanks again.

Hey Johnny,

Since you've failed to inform me what material the pipes consist of I can only answer in general terms. If you place the tub over the existing trap you will need a compression fitting to connect the tub waste to the trap raiser.
Good luck Tom

JohnnyAppleseed · Sep 5, 2006, 03:26 PM

Hi Tom... me again :rolleyes:

So naturally, there's been a change of plan.
A shower "kit" will now be installed where the old tile shower now sits.
Also naturally, the drains don't line up.
I've read several threads about this situation, and found one that is bang on point
https://www.askmehelpdesk.com/plumbi...t+shower+drain

I'm going to go with the diagram in that thread, and I wonder if I understand correctly.
You mention leaving a 1" gap between existing drain and any new pipes I would run to it... or do I seal these puppys right up..?

Thanks again...

(and thanks too to PalmMP3 for that diagram)

speedball1 · Sep 6, 2006, 06:27 AM

If you follow MP3's diagram in offsetting abve the trap then seal it up. Regards, Tom

JohnnyAppleseed · Sep 7, 2006, 05:08 AM

Thanks Tom... :)

PalmMP3 · Oct 12, 2006, 07:51 PM

Originally Posted by JohnnyAppleseed

...(and thanks too to PalmMP3 for that diagram)

You're welcome. ;)

bldaz · Jul 30, 2012, 06:04 AM

I know this is and old post but there are no compression fittings installed behind walls or in floors. The only exception would be the vent riser. Cheers

speedball1 · Jul 30, 2012, 06:26 AM

Originally Posted by bldaz

I know this is and old post but there are no compression fittings installed behind walls or in floors. The only exception would be the vent riser. cheers

Can you tell us what in hell you're talking about? Tom

bldaz · Jul 30, 2012, 11:38 AM

Originally Posted by speedball1

Can you tell us what in hell you're talking about? Tom

Oh, Is thIs the forum board resident crochety old know it all guy?
You find it nessesary to question because why ? Y
Do you need code violations for burying machismo cal fasteners under ground or I'm the wall!
Or do you need an plumbing appretiship ?

speedball1 · Jul 30, 2012, 12:06 PM

My-my! Aren't we touchy?

Is thIs the forum board resident crochety old know it all guy?

Nope! But I am the guy that polices this page for posts that answer 6 year old questions about drainage with nonsense about compression fittings.

You find it nessesary to question because why ?

Because I can and it's my job to do so.

Do you need code violations for burying machismo cal fasteners under ground or I'm the wall!

We all know you can't bury or hide compression fittings but this knowledge in no way relates to the original question. And wouldn't even if the question wasn't 6 years old.

Or do you need an plumbing appretiship ?

I've been plumbing since before you were born. Well over 60 years in the trade. And how long have you been plumbing and just where did you get your license?
All in all you came on The Plumbing Page as a newbie with a out of date nonsense post and got smart with the wrong guy. Now, cool your jets and if you have anything to add to the page you're welcome to post. Think you can handle that? That? Tom