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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-23-2012, 01:36 PM   #1
Member
 
Join Date: Oct 2012
Location: Oklahoma
Posts: 34
Rewards Points: 28
Default

Replacing in-slab shower base.


Hello everyone, this is my first post so bear with me.
I'm in the middle of a complete bathroom rebuild at a cabin I just bought last summer. I am having a solid state shower put in and am trying to get the plumbing ready for the install. It is going to consist of 2 shower walls, which are exterior concrete block that I will need to frame out to fit the plumbing/fixtures. It was originaly just tile directly on the block. The drain is in-slab and very close to the corner of the exterior walls, so it will need to be moved before I frame out the walls. I have also discovered that there is no shower pan. It appears that the slab was cut out and filled back in with sloped concrete and they tiled on top and called it good. (while looking for the pan I hammered one area out until I hit dirt)
So now that I have damaged the existing concrete and need to move the drain anyway, I feel I need to just remove all of the concrete in the shower base, do the drain work, and fill back in with concrete. I'm just nervous about taking up that much of the slab so close to the exterior walls. Is this OK to do, or am I asking for trouble?

CabinCrisis is online now   Reply With Quote
Old 10-23-2012, 02:12 PM   #2
Member
 
Join Date: Jul 2012
Location: cleveland ohio
Posts: 445
Rewards Points: 250
Default

Replacing in-slab shower base.


The walls are wood and sit on the slab? You do not want to undermine the support under a load bearing wall. A picture would be nice. Also they cut the slab to pour the pan, so it was done once. Now you are going to just do more.

paintdrying is offline   Reply With Quote
Old 10-23-2012, 02:29 PM   #3
Member
 
Join Date: Oct 2012
Location: Oklahoma
Posts: 34
Rewards Points: 28
Default

Replacing in-slab shower base.


The walls are cement block. I am going to fur/frame over them just enough to get the shower fixtures behind, cement board, shower walls.
Quote:
Also they cut the slab to pour the pan, so it was done once. Now you are going to just do more.
Thats what I was thinking, but the more I open this cabin up the more doubts I have about everything that has ever been done to this place, it's a real DIY free for all out here and not the good kind!
Attached Images
 
CabinCrisis is online now   Reply With Quote
Old 10-23-2012, 03:45 PM   #4
Member
 
Join Date: Oct 2012
Location: Oklahoma
Posts: 34
Rewards Points: 28
Default

Replacing in-slab shower base.


Does anyone know what would be the best way to get all the cement out without damaging the drain pipe? I've been using a sledge hammer but I have stayed away from the drain so far.
Also, once I am ready to fill it back in is there anything I should know? Just pour the cement in the hole on top of the dirt? Any special type of cement?
CabinCrisis is online now   Reply With Quote
Old 10-23-2012, 10:11 PM   #5
Member
 
Join Date: Jul 2012
Location: cleveland ohio
Posts: 445
Rewards Points: 250
Default

Replacing in-slab shower base.


You will be fine, try and not expose to much under grade. If you actually have a footer you will be fine, but realistically you should be just fine. As for breaking up around the drain pipe, I would just go for it, if you break the drain so what really. As for the pour itself, that is a whole other can of worms. The type of pan, drain, liner ect. I wonder who on here would put a piece of two inch foam board down to insulate the slab? Who would use rebar? Lot of different ways to get things done,I would say spend a few hours on youtube. On a side note, your questions may also be answered by other tradesman. Back in the day plumbers ran pipe and other tradesmans did the other stuff. Just saying
paintdrying is offline   Reply With Quote
The Following User Says Thank You to paintdrying For This Useful Post:
CabinCrisis (10-23-2012)
Old 10-23-2012, 10:36 PM   #6
Member
 
Join Date: Oct 2012
Location: Oklahoma
Posts: 34
Rewards Points: 28
Default

Replacing in-slab shower base.


Thanks for the reassurance. I'm going to let the shower guys handle most of the rest, they just need a level area with the drain stubbed up a few inches. The solid state shower eliminates the pan, slope, etc.
I'm sure I will be back when I start messing with the drain pipe.
Thanks
CabinCrisis is online now   Reply With Quote
Old 10-24-2012, 04:38 AM   #7
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,868
Rewards Points: 2,384
Default

Replacing in-slab shower base.


You really need to know what you are going to use for the new pan before you replace the concrete---

The placement of the drain and the height of the pipe is critical--
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
The Following User Says Thank You to oh'mike For This Useful Post:
ben's plumbing (10-24-2012)
Old 10-24-2012, 08:40 AM   #8
Member
 
Join Date: Oct 2012
Location: Oklahoma
Posts: 34
Rewards Points: 28
Default

Replacing in-slab shower base.


The company that is installing the shower pan(base), walls, etc. builds to suit. It is going to be a solid acrylic stone looking job. They can put the drain hole in the base anywhere I need it, all they said they need is the drain pipe stubbed up at least 2" above the slab. The only reason I am moving the drain is that it is going to be too close to the corner once I frame out the walls. All the plumbing was originaly dropped in from the ceiling.
From what they tell me, once I have all the plumbing in place and the cement board hung, they come out and measure everything, fabricate it at their shop and install. What could possibly go wrong...right?
CabinCrisis is online now   Reply With Quote
Old 10-24-2012, 05:12 PM   #9
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,868
Rewards Points: 2,384
Default

Replacing in-slab shower base.


I build bathrooms---that sounds wrong----

Typically the pan fits tight to the framing--then the rock goes up---tile covers the pans flange and water will stay in the pan---

Open only the portion of the floor needed to relocate your drain and trap---repair the missing concrete leaving an opening about 6 or 7 inches across around the pipe---have some gravel available to fill that when the pan setters arrive.

It is important that the pipe has a little wiggle room----

Ask for a drawing of the typical shower pan/wall/backer board set up-----I've built a lot of showers--many using the cast pans you are describing --and never had one that didn;t have the rock on top of the pan flange---
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Old 10-24-2012, 05:32 PM   #10
Member
 
Join Date: Oct 2012
Location: Oklahoma
Posts: 34
Rewards Points: 28
Default

Replacing in-slab shower base.


I'm sure you are right about the cement board. I remember them saying that they do that part.
I'm afraid that I'm still going to hammer out all the cement though I'm sure it's pretty fractured due to my exploration with the sledgehammer. I also have the feeling that it may not have a trap. So you think I should leave a trench around the pipe when I'm done?
I would love to have a professional do all this but I can't find anyone that will show up as this cabin is in the middle of nowhere. I'm on my own.
CabinCrisis is online now   Reply With Quote
Old 10-24-2012, 06:48 PM   #11
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,868
Rewards Points: 2,384
Default

Replacing in-slab shower base.


No trench----open the concrete--rent a small chipping hammer if you can---do the drain moving work---refill and bury the lateral pipe and P-trap in gravel----

Make a small wood box form to keep the pipe from getting trapped in the new concrete--

Then mix up a bag or two of Sackcrete--and replace the missing floor----leaving the new pipe sticking up inside of your form.

Don't over fill the patch area---low is good---the shower base guys will mix up masons mortar to bed the new base into--so any low places will be filled at that time.

If they are adding the base and the rock---you need not worry----I always water proof the new rock with a paint on membrane like Red Guard or Hydroban---so I do not put a vapor barrier behind the rock----Mike----
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
The Following 2 Users Say Thank You to oh'mike For This Useful Post:
ben's plumbing (10-24-2012), CabinCrisis (10-24-2012)
Old 10-24-2012, 07:52 PM   #12
Member
 
Join Date: Oct 2012
Location: Oklahoma
Posts: 34
Rewards Points: 28
Default

Replacing in-slab shower base.


Thanks for the tips Mike! I would have sealed that pipe right in the concrete.
One more question, I only have 1 vent pipe for the bathroom and the kitchen sink, it appears to be tied in to the main drain line under the slab, there is nothing tied into it above the slab. This is wet venting right? Everything seems to drain fine, but if I need to change it up I guess now is the time.
The drain pipe runs like this: bathroom sink, shower, toilet, vent, kitchen sink, septic.
Thanks again, I love this site!
CabinCrisis is online now   Reply With Quote
Old 10-24-2012, 11:31 PM   #13
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,868
Rewards Points: 2,384
Default

Replacing in-slab shower base.


Without a picture or a diagram I can't say much about your venting---If it's working well---leave it alone--

__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Frameless Glass Shower Install lynxpilot Kitchen & Bath Remodeling 12 10-23-2012 11:14 PM
Shower base: which brand to go with? sukhenkoi Kitchen & Bath Remodeling 8 03-05-2011 01:19 PM
adding shower base kerbongi Plumbing 2 08-08-2010 09:07 PM
replacing ceiling mount shower head JoanneW Plumbing 3 05-31-2010 08:19 PM
Installing a new shower base frgwtchr Plumbing 2 08-17-2009 06:30 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.