Tub Drain Off By 1/2", Worth Busting Concrete? - Plumbing - DIY Home Improvement | DIYChatroom


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

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 10-22-2009, 01:45 AM   #1
Newbie
 
Join Date: Oct 2009
Posts: 3
Rewards Points: 10
Question

tub drain off by 1/2", worth busting concrete?


We're installing a new acrylic tub as a replacement for an old fiberglass tub that had developed a crack. The new tub is deeper, so we knew we were going to have to adjust the height of the overflow pipe. However, during our first test fit of the tub we discovered the bottom drain is misaligned by half an inch:



The drain/overflow assembly is set in our concrete slab (single-story home) as you can see here with the tub gone:


My research so far is pointing in the direction of busting up the concrete and replacing the drain/overflow assembly with one of those off-the-shelf kits. I wanted to check before proceeding down that road, though:
  • is there an easier way to manage some kind of offset drain fitting since it's so close?
  • how confident can i be that i can rotary-hammer my way into the concrete and arrive at a clean attachment point for the new drain kit?

Any & all tips appreciated!
The Z's
Attached Thumbnails
tub drain off by 1/2", worth busting concrete?-dscn0517.jpg   tub drain off by 1/2", worth busting concrete?-dscn0523.jpg  

Advertisement

thezs is offline   Reply With Quote
Old 10-22-2009, 03:09 AM   #2
Newbie
 
Join Date: Jun 2009
Location: LA
Posts: 8
Rewards Points: 10
Send a message via ICQ to grillman39
Default

tub drain off by 1/2", worth busting concrete?


I had a new acrylic kitchen sink that would not go in to a counter top just right because of the back splash so I took my dremel tool and trimmed the acrylic off to make it work it looks good you may be able to trim some off the tub or the studs to make it go in but make sure that if to trim or plain the studs that you trim off what you will need for what ever you are going to put on the wall
hope this will help you some way some my think I am nuts
I am some
times
good luck
grillman39

Advertisement


Last edited by grillman39; 10-22-2009 at 03:12 AM.
grillman39 is offline   Reply With Quote
Old 10-22-2009, 09:40 AM   #3
Newbie
 
Join Date: Oct 2009
Posts: 3
Rewards Points: 10
Default

tub drain off by 1/2", worth busting concrete?


If I were off by just 1/32-1/16th" maybe I could use a dremel on the tub to account for it. But 1/2" is way too much.

Adding breathing room at the studs is an interesting idea, but since we bought shower walls that match this tub that will go in next, I'm worried we'll be introducing an error factor there just to get the drain to line up right. As is, aside from the drain, the tub fits perfectly in the alcove space basically flush with all the studs.

I think I'm really looking for ideas in the space of what I can do with the drain plumbing specifically.

Thanks though!
thezs is offline   Reply With Quote
Old 10-22-2009, 08:29 PM   #4
Newbie
 
Join Date: Oct 2009
Posts: 3
Rewards Points: 10
Default

tub drain off by 1/2", worth busting concrete?


Any other ideas?
thezs is offline   Reply With Quote
Old 10-22-2009, 08:38 PM   #5
Member
 
Join Date: May 2008
Location: Near Philly
Posts: 2,051
Rewards Points: 1,022
Default

tub drain off by 1/2", worth busting concrete?


I'd bust it up; it likely (famous last words) isn't too thick. May take an hour or so but at least it will make everything else easier.
bob22 is offline   Reply With Quote
The Following User Says Thank You to bob22 For This Useful Post:
oh'mike (12-28-2012)
Old 10-22-2009, 09:02 PM   #6
GC/Master Plumber/Mech
 
Join Date: Feb 2009
Location: Hays, KS
Posts: 1,472
Rewards Points: 504
Default

tub drain off by 1/2", worth busting concrete?


Bust it out and leave it out.

Reconect with a new tub drain and install tub

You will thank yourself when you have the new tub installed and you need to make a repair to the drain. Think about busting concrete out with that new tub installed through and access hole or better yet tearing out a new tub

I always leave the cut out open unless it is for a toilet
__________________
John Wayne once said "Life is tough and it is even tougher if you are stupid"

Tempstar and Trane Dealer
Plumber101 is offline   Reply With Quote
The Following User Says Thank You to Plumber101 For This Useful Post:
oh'mike (12-28-2012)
Old 10-28-2009, 12:34 AM   #7
Newbie
 
Join Date: Jun 2009
Location: LA
Posts: 8
Rewards Points: 10
Send a message via ICQ to grillman39
Default

tub drain off by 1/2", worth busting concrete?


plumber 101 is right bust it out and keep it open I have a older home built 1978 not that old to me but any way he is right I had to work on my drain and when the home was built they kept the drain open they filled it up with sand at some point the wall was cut behind the tub to look for termites and they put a vent over the hole so thank God all I had to do was open the vent and fix the drain I call a plumber friend and asked him was the open hole in the slab okay he told me that it was okay
grillman39 is offline   Reply With Quote
Old 12-28-2012, 05:29 PM   #8
Newbie
 
Join Date: Dec 2012
Posts: 1
Rewards Points: 10
Default

tub drain off by 1/2", worth busting concrete?


Did you end up busting out your concrete? I have the exact same issue. Did you take pictures and how was the access of the plumbing after the concrete was busted up?
dstarr is offline   Reply With Quote
Old 12-28-2012, 05:54 PM   #9
Newbie
 
Join Date: Dec 2012
Location: Missouri USA
Posts: 3
Rewards Points: 10
Default

tub drain off by 1/2", worth busting concrete?


Depending on where you are behind that wall, seems like a great place for access. Bust out and leave open is always good. Does'nt look like you have room to do much without raising the tub?
Billy5812 is offline   Reply With Quote
Old 12-29-2012, 12:21 PM   #10
Newbie
 
Join Date: Dec 2012
Location: Pittsburgh, PA
Posts: 20
Rewards Points: 10
Default

tub drain off by 1/2", worth busting concrete?


Wow, I forgot about this thread. In fact I even forgot about the old account I had posted it under - I'm the original poster.

Yes, I did wind up busting the concrete out and leaving it open. Interestingly, after worrying about this so much, I found that the concrete immediately around that pipe was basically paper thin and just spread out over some mesh, so it took all of 5 minutes to open it up. There was dirt beneath. I dug some dirt out, threw it away, cut the old drain/overflow assembly off of the pipe coming out of the ground, and attached a new one.

To be confident I had the alignment right, I decided to cut open the wall behind that drain point - luckily that wall was just the back of our laundry room and any hole I cut was going to be obscured by the washing machine. From that side I triple-checked the alignment before applying cement to the new assembly's connection with the pipe and was good to go.

Jeff
jeffzap is offline   Reply With Quote
Old 12-30-2012, 10:30 AM   #11
Member
 
Join Date: Mar 2012
Location: far sw sub chicago
Posts: 4,110
Rewards Points: 2,692
Default

tub drain off by 1/2", worth busting concrete?


a resolution reply after 3 years
Fix'n it is offline   Reply With Quote
Old 12-30-2012, 11:38 AM   #12
Master Plumber
 
Javiles's Avatar
 
Join Date: Dec 2011
Location: Miami Florida
Posts: 1,465
Rewards Points: 718
Default

tub drain off by 1/2", worth busting concrete?


Who digs up these old threads ?
__________________


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

http://www.americandrain.net
Javiles is offline   Reply With Quote
Old 12-30-2012, 01:04 PM   #13
Member
 
Join Date: Mar 2012
Location: far sw sub chicago
Posts: 4,110
Rewards Points: 2,692
Default

tub drain off by 1/2", worth busting concrete?


Quote:
Originally Posted by Javiles View Post
Who digs up these old threads ?
usually the newbe's. while searching, as they should, for info on their own similar problem/s .

Advertisement

Fix'n it is offline   Reply With Quote
Reply


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
Help!: 4" concrete over 2' dirt over 7/8 wood planking! agent99 Flooring 4 04-28-2009 09:21 AM
Wierd Floor Drain "Backup" rawkintrevo Plumbing 9 06-04-2008 08:10 PM
How to outline the 1 1/2" PVC drain froddan Plumbing 6 07-24-2007 04:15 AM
Need to expand existing concrete pad for A/C unit miketegra Building & Construction 2 07-03-2005 11:27 PM




Top of Page | View New Posts