Where's my service line?

Old 05-26-01, 03:26 PM
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I don't know if this is the right forum or not but I am putting in a sprinkler system and I'm not sure where the service line enters the house. Here's the problem:

The water meter for the house is in front (by the street). In the crawl space at the front of the house there is a 3/4" copper pipe with a shut off valve entering from below ground level. I would assume that's the service line entering the house. HOWEVER, here is what I don't understand - when I turn on the outside faucet/hose at the front of the house (nearest the assumed service line) I can hear water running throughout the house (i.e. from back to front). When I turn on the backyard hose, I don't hear any water running in the house. Wouldn't one expect the opposite to happen? Help!!

Here is some more information if you need it: the house was built in 1910 and was renovated in the 70's. All the interior plumbing is copper. I dug up what I think is the service line in the front lawn (next to the outside faucet) and found poly buried about 3 feet down (not copper as I had expected).
Old 05-27-01, 12:39 AM
Mike Swearingen's Avatar
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Without seeing the way that your plumbing is set up, it is difficult to tell what was done when the house was re-plumbed.
It sounds like a PVC line was run below the frost line from the meter to your house, and converted to copper up above.
That valve should be your main water cut-off.
Close that valve, and it should shut off all water.
However, if someone ran the back and front spigots directly off of the main, the valve may only cut off the house, and not the spigots.
You just have to look at the pipes that you can see to figure it out.
Good Luck!

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