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-   -   How to fill an abandoned drain (http://www.houserepairtalk.com/f33/how-fill-abandoned-drain-7687/)

Kelly M Bray 10-05-2009 08:37 PM

How to fill an abandoned drain
 
I have a friend who has a room in their business that used to be a restroom. The drain hole is still in the floor. There was just a piece of wood covering it. I would like to plug it, and cap it with cement flush with the floor. The business is on a slab. I don't want to accidentally plug any other section of the line. What is the best practice to do this?

Cork-Guy 10-05-2009 09:27 PM

Well, the first step would be to make sure it's disconnected from they actual sewage line before making any decisions; most likely it is. You could just cap it over and it shouldn't effect the line as long as no cement gets to the bottom. Does the drain emit any smells of sewage from it?

Kelly M Bray 10-05-2009 11:14 PM

I am sure that it probably is still connected. It is a slab with no access under for me to redirect the line. Is there a form of permanent plug that can be inserted and then capped with cement?

Cork-Guy 10-06-2009 01:25 AM

Is it a copper, pvc or iron pipe?

majakdragon 10-06-2009 09:50 AM

If the pipe was for a toilet, there is no trap under the floor and sewer gas can enter. No real need to disconnect it from the drainage system. I would cut a piece of wood that will wedge into the hole and use hydraulic cement. Leave a bit of room near the top for a finish coat of cement.

JoeD 10-06-2009 11:17 AM

Expandable plugs are available.
Here is an assortment.

http://www.stemarinc.com/images/PipePlugs.jpg

http://www.stemarinc.com/images/PipePlugs.jpg

Kelly M Bray 10-06-2009 08:47 PM

Thanks folks, had to use an expansion plug. No way to really fill it up this round. thanks for your help!


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