Copper Gas Line Used for Water

Kathy bought a house in a suburb of St. Louis. 

Here’s what she sent me:

“I purchased a home and the previous resident used gas line to run water thru the house from the main line.  Is this safe for water and does it leach any chemicals? Should I have my water tested?

We plan in the next three years to change all the plumbing lines, but I am worried about safety between now and when we do. Also if testing, is necessary who do you suggest?”

I might add that Kathy sent a photo of this strange circumstance.

The top pipe is a 3/4-inch copper water line. The one below it and brighter, is also copper. That must be the gas line Kathy is talking about. (C) Copyright Kathy H. but giving Tim Carter a perpetual free license to publish it.

The top pipe is a 3/4-inch copper water line. The one below it and brighter, is also copper. That must be the gas line Kathy is talking about. (C) Copyright Kathy H. but giving Tim Carter a perpetual free license to publish it.

I’ve been a master plumber for over 35 years and I don’t see any issues at all. The gas line was copper and my guess is the previous owner wanted to save some money.

I happen to wonder what new gas line he installed!

If the water tastes fine and there’s no odor, then all is well. Copper is an excellent material to use for water supply lines.

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