tapping water line for new line

KarlJay · 07-26-2010, 01:34 AM

I want to tap my primary water line to feed a new line out to the driveway.
I found the main water line and I was expecting 1" galv, it's that green ecoat stuff. I bought everything to cut and splice the line assuming it was 1 1/4" OD, instead it's 1 1/16" OD.
I was going to use a 'T' made from 1" galv and food service grade plastic tube from Home Depot. (I used this to patch a break 10 years ago and it's still holding).
So now I need to find a way to tap into this line, I'd like to just cut and splice it, but I can't seem to find 1 1/8" ID tube, I don't know if HD has a 'T' that will fit the coated pipe.
Any suggestions, I don't have a threader and haven't found a joint/coupler yet.
I'm guessing I need to go somewhere other than HD...
Thanks, KarlJay.

Just Bill · 07-26-2010, 07:17 AM

NEVER use iron/galvanized in a water line, it will eventually rust. It sounds like you are describing the water company main line, I don't think they want you tapping into that.

I would not be using HD as my supplier, go to real plumbing suppliers.

majakdragon · 07-26-2010, 10:27 AM

Any water line installed before the meter, belongs to the water company. I would check with them before doing any cutting.

KarlJay · 07-26-2010, 02:32 PM

There is no meter, where I'm tapping is on my side of the line. It's galv when it gets under the house, so someone has changed things around a bit. I think I'll check some of the real plumbing suppliers, those HD people usually don't know what they are talking about.

KarlJay · 07-28-2010, 05:15 AM

Ends up it's 1" copper and I've decided to have someone tap in a 'T' for me, it'll cost about $150 (some bids were over $500). Thanks for the help.

LateralConcepts · 07-28-2010, 10:30 AM

Around here green coated lines are natural gas. Don't cut into that!

Was it a plumber that told you it was 1" copper?

Is the line underground or inside the house?