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blackbox

Active Member

1

Thursday, April 29th 2004, 2:33pm

Tapping Into The Supply Line (Plastic)

I read pretty well most of the articles in the forum but can't found the answer I am lookin for.
The supply line is 3/4 inch grey plastic (PVC?,is flexible)under ground. What should I use to tap into the line? I was thinking using compression TEE and 3/4 inch sch 40 PVC to shut-off valve to double check back flow preventer then switch to 1 inch PVC going to manifold. The distance from the supply line to the back flow preventer is about 2 feet.
Thanks for help!

aquamatic

Advanced Member

Posts: 230

Location: USA

2

Friday, April 30th 2004, 5:16am

I am not to thrilled about compression fitting- especially on a main that has constant pressure

blackbox

Active Member

3

Friday, April 30th 2004, 6:11am

aquamatic, what would you recommend? The supply line is plastic (flexible pvc I guess).

aquamatic

Advanced Member

Posts: 230

Location: USA

4

Friday, April 30th 2004, 6:58am

use slip fitting with double stainless steel clamps. Does this main go into a meter??

blackbox

Active Member

5

Sunday, May 2nd 2004, 9:49am

No, it's does not go to or come from a meter. It comes off the city shut-off and it is underground.

bobw

Advanced Member

Posts: 101

Location: Canada

6

Sunday, May 2nd 2004, 12:31pm

Be careful. Around here grey plastic is Poly B piping and it is not manufactured anymore, nor is it approved for new use. (has to do with leakage issues and subsequent bankruptcy of the manufacturers due to liability issues). The only fittings we can buy for them are polyB/pex couplers to allow you to cut into the line and link Pex piping in. Regardless, if it is polyB, it shouldn't realy be used in an underground use anyway.....

blackbox

Active Member

7

Monday, May 3rd 2004, 6:33am

bobw, Thanks for the info. The line was put in about 12 years ago when the house was build. I am not sure if it is polyB. The identification was illegible on the pipe. I am going to check with a plumber just to be safe.

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