Concrete over Capped Water Line


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Old 08-12-19, 12:14 PM
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Concrete over Capped Water Line

So, I am doing some kitchen renovations and moving things around a bit. I have a copper water line that comes out of my slab where my old fridge was (in the middle of the kitchen oddly enough) and the fridge is now against one of the walls where I ran a new water line.

Where the old fridge was I want to tile right over, but at the moment I have a copper pipe coming out of slab! So my current plan is to chip away at the concrete around the pipe, cut the pipe off below the top of the slab, have a cap sweated on the pipe, and then fill in with concrete so I have a smooth continuous surface to tile on top of. I am not super familiar with plumbing regulations and best practices, so I am really seeking guidance on if this is a bad idea, or if there are any alternatives I should consider?

Thanks in advance for responses!
 
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Old 08-12-19, 12:34 PM
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If possible, I would locate and cap the line at the source.
 
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Old 08-12-19, 12:34 PM
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How is the water to this pipe turned off currently?

I'm hoping the line for the fridge is home ran back to the utility area or at least to somewhere you can cut and cap above grade.
 
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Old 08-12-19, 01:31 PM
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Currently I have this pipe capped off with one of those push to connect fittings, just so I can have the water to the rest of the house on and I just have a trashcan over the pipe so no one kicks it on accident.

The routing I know about in my house is that I have a 3/4 waterline that comes in off the street and it comes into the house (in the garage) and drops down into the slab. Then I have 1/2 water lines that come out of the slab in both the bathrooms, at the kitchen sink, behind the washing machine, and at the old fridge location. I have done a lot of work in the attic (which was non insulated when I bought the house) and I never saw any water lines up there, so I have not found any way to turn off the water to that specific pipe, without turning off the water to the whole house. Any thoughts on where I would find a spot to access that specific water line?
 
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Old 08-12-19, 01:57 PM
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There's no magic to it, the line is either accessible or not, and your homework verifies that he fact that it is not, so no viable alternatives. Your plan of chipping back the floor and sweating a cap on the line is the only practical solution.
 
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Old 08-12-19, 02:00 PM
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I have a bad feeling based on your description, the water lines are all teed off within the concrete. If this is correct, I'm not sure what to suggest. Might be worth getting some local advise from a plumber or two.
 
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Old 08-13-19, 11:23 AM
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I'd agree with Pedro, unless you're looking to make this a huge project, capping it under the concrete is a fine solution. You typically don't want 'dead' lines in your plumbing system, but it doesn't sound like there's a reasonable alternative.

I would wrap the pipe and cap in tape or foam insulation to separate it a bit from the cement from corrosion or any possible movement.
 
 

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