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Old 03-21-2007, 02:14 PM   #1
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have sliced into underfloor polyethylene pipe


I have sliced half the diameter into a poyethylene water pipe buried two cms in newly laid floor concrete. Are there any miracle products or tricks to repair it or do I have to cut the concrete out all around it to put a pipe connection?
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Old 03-21-2007, 06:44 PM   #2
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have sliced into underfloor polyethylene pipe


What is this pipe suppling? This is pex pipe. clear looking right?
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Old 03-22-2007, 12:19 AM   #3
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have sliced into underfloor polyethylene pipe


No Ron, it's black pipe. I'll cut off a piece and post a photo tonight.
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Old 03-22-2007, 06:57 AM   #4
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have sliced into underfloor polyethylene pipe


If this pipe is rigid black plastic, it most likely is an ABS black plastic drain pipe. If it is, you will have to cut or break out the concrete around the cut and repair it with an ABS coupling the same size as the pipe, using ABS glue only.
I can't imagine anyone putting thin wall flex black water supply tubing in concrete, but what do I know. That would require a different type of double end king nipple inserted into the line and sealed with stainless steel clamps.
What do you think Ron?
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Old 03-22-2007, 07:53 AM   #5
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have sliced into underfloor polyethylene pipe


Yes lets see the picture.
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Old 03-22-2007, 01:32 PM   #6
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have sliced into underfloor polyethylene pipe


So sorry, clean forgot to take a shot of the pipe. If it helps, here's the black pipe embedded in the concrete with the cut. It's pipe you buy in rolls of approx 1m diam, OD about 40mm and walls about 4mm thick.

Is there no miracle fix the bright boys have invented?

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Old 03-22-2007, 05:45 PM   #7
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have sliced into underfloor polyethylene pipe


I can't tell what that is, but what ever it is, it will need exposed and fixed. no miracle fix, sorry.
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Old 03-23-2007, 09:52 PM   #8
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have sliced into underfloor polyethylene pipe


Again forgotten to take a photo although I'm tripping over the stuff all day long on the site. Someone has sent me photos of a thermal repair, how do you feel about this sort of solution which like most innovations probably came from the States. Here's a photo of the sleeve and a photo with the wires which send a current into two electrical resistances which heat and melt the "plastic" together. A bit pricey apparently.

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Old 03-23-2007, 11:38 PM   #9
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have sliced into underfloor polyethylene pipe


More info. The pipe I've cut is 32mm HDPE High Density Polyethylene and it would appear that this electrofusion methode dates from 2005 and an Israeli company PLASSON is very active in this field. Have you used it much, what do you reckon? An expensive "overkill" for a one-off job?
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Old 03-24-2007, 10:12 AM   #10
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have sliced into underfloor polyethylene pipe


Never delt with this before, so I don't know.
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Old 03-31-2007, 12:11 AM   #11
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have sliced into underfloor polyethylene pipe


looks like "blueflex" poly well pipe.. also found in ancient swimming pools...

what is the line supplying?

you've already exposed pipe & removed a biy of concrete.. why stop now?

ray
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