Plumbing

My question is: Has anyone ever relined a line like this? (It will be rather expensive to dig up and replace). Someone referred to a product called PEX that maybe could be used (say use a 1/2" size to snake through the existing line).

Anyone have experience or other suggestions to solve this problem? Thanks!! bob f.

HTH

Areo

I have ran pex thru copper before. It works well for a short run i know. Ive done it in a few houses where one of the lines would spring a leak and need to be replaced from point a to point b. It sure beats tearing up the slab, and the customers think your a genius.

What i would do is get some short samples of pex to see which size would fit COMFORTABLE thru your size pipe. Pushing 120 feet or so is gonna be quiet a challenge. I hope there is no solder bulges at the joints in your existing copper or its not flattened or kinked, if so then nothing will work. You might try blowing a line thru your pipe with air pressure to hook to the pex to help pull the pex thru.

Just my 2 cents
Good luck
Randy

Take your pressure washer and hook up to another pipe and use that to mole your way uder the slab. Use a PVC liner under the slab incase you need to do this agian. Slip the CU inside the PVC as a sleave.

T_Bone

I was going to suggest that you slip 10' sticks of 3/4" copper inside the 1" supply line, soldering as you go. It would require that the 120' run be straight and that there be at least a few inches more than 10' of clearance at one end. A chart I found online showed that per the measurements it would work even with Type K copper---the thickest walled stuff. Then I remembered the couplings you would have to use at the joints---no way would they fit through 1" pipe. If you have to go to 1/2" supply, you're probably better off with PEX because it would be seamless and low friction. It ought to be easy enough to get the specs on what flow you can expect through PEX and decide whether it will be enough.

What about 3/4" copper from a roll? It would fit inside 1" pipe, and be seamless and low friction (though not as low as PEX, I imagine.) This is assuming that the OD of 3/4" PEX is greater than the ID of 1" copper. Maybe 5/8" PEX would fit, and the pressure loss wouldn't be too serious.

Good luck with it, Stan

Charles

--->Paul