Tub To Shower Conversion - Plumbing - DIY Home Improvement | DIYChatroom

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing


Thread Tools Display Modes
Old 01-19-2013, 10:33 AM   #1
Join Date: Jan 2013
Posts: 2
Rewards Points: 10

Tub to Shower conversion

I am replacing my tub with a shower stall and going with Koeller product fibeglass pan. The existing plumbing has the overflow for the tub. Should I cut the overflow and cap this section? Also I heard I should replace the drain with a 2 inch drain where would I cut the existing plumbing to do this? Thank you for the advice.


Redding101 is offline   Reply With Quote
Old 01-19-2013, 10:37 AM   #2
Join Date: Nov 2011
Location: Hartfield VA
Posts: 34,587
Rewards Points: 14,306

How would anyone here know without a picture?
Yes you will need a 2" drain for a shower.


joecaption is offline   Reply With Quote
Old 01-19-2013, 10:47 AM   #3
Join Date: Jan 2013
Posts: 2
Rewards Points: 10

Here the existing plumbing

Attached Thumbnails
Tub to Shower conversion-tubdrain.jpg  
Redding101 is offline   Reply With Quote
Old 01-19-2013, 11:40 AM   #4
DIY staff

Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 25,728
Rewards Points: 7,174

Open up the piping and see where the 2 inch starts----it might be right there---or it might not exist at all----it is possible the line will need to be replaced over to the nearest larger drain pipe.

Dig out the area around the existing drain and see what you have---
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Old 01-19-2013, 12:19 PM   #5
Join Date: Mar 2011
Location: Ohio
Posts: 1,646
Rewards Points: 1,000

definitely change the drain to 2 inch. you may have to go over near the toilet and cut into the 3 or 4 inch line there to run a 2 inch line for the shower. if you leave the 1-1/2 you will be kicking yourself down the road when you have problems with it.
DannyT is offline   Reply With Quote
Old 01-19-2013, 01:23 PM   #6
Master Plumber
Javiles's Avatar
Join Date: Dec 2011
Location: Miami Florida
Posts: 1,604
Rewards Points: 996

Go to 2 inch, the trap may already be in 2 inch if so your good to go, but you cant off set the trap you'll need to relocate it to the new drain area.

Experience is Knowing what to do next, Skill is knowing how to do it

Javiles is offline   Reply With Quote
Old 01-19-2013, 05:03 PM   #7
Ole Wood Worker

BigJim's Avatar
Join Date: Sep 2008
Location: Chattanooga, Tennessee
Posts: 10,635
Rewards Points: 772
Blog Entries: 1

Hopefully your drain is on the right end and not center, even then chances are it won't line up exact without some rework.
New members: Please consider adding your location to your profile.

If you do what you've always done, you'll get what you've always got.


BigJim is online now   Reply With Quote
Old 01-19-2013, 07:25 PM   #8
Join Date: Oct 2012
Location: Maryland
Posts: 3,726
Rewards Points: 2,210

Yes you will want to open things up some and install a two to the three or whatever is there with a combination fitting or a Y and an 1/8 bend. You will need a vent for which I would also use a combination fitting. It appears that you are starting to get some dry rot in your sole plates which appear to be untreated fir. You will want pressure treated lumber there if you can do it, although it would be difficult and labor intensive at this point. Maybe theres a vapor barrier under there. The good news is that your floor is not too thick, and should be easy to break out. (If you could call that good news) I dont see any clean stone though, which is kind of standard under a slab. Im sure you know this, but shoveling the dirt out and undermining the slab will make removal with a sledge hammer much easier.

Good Luck, John Henry.
" Most people would rather die than think, and most do " Bertrand Russell

Last edited by jagans; 01-19-2013 at 07:30 PM.
jagans is offline   Reply With Quote
Old 01-19-2013, 09:01 PM   #9
Join Date: Jan 2012
Location: ohio
Posts: 1,164
Rewards Points: 636

i,p,c. says if shower is below 5.7 gpm a 1 1/2 trap is fine


"be careful at listening to just one persons advise" said me
"be careful at listening to just one persons advise" said myself
p.s. not all i say is a fact but not all i say is my opinion.
jaydevries is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Connecting shower drain to toilet drain Liv Plumbing 10 04-17-2013 10:53 PM
Tub to Shower Drain Conversion chris85016 Remodeling 9 01-14-2011 04:43 PM
Bathroom shower surround StevePax General DIY Discussions 0 11-12-2009 12:31 PM
How to tile around a Pre fab shower base geoffthemonk Building & Construction 1 11-07-2009 09:10 AM
redoing basement shower - basic questions (relocating drain/options I have) mslide Plumbing 5 10-28-2008 10:42 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1