The presence of oxidizing acids; heavy-metal salts, sulfur, and ammonia; and a number of sulfur and ammonia compounds can cause corrosion to set in. Water that comes from a well is much more likely to contain these materials and put copper lines in jeopardy—but it can occur in the civic water system as well.

What type of copper is used for natural gas?

The types of copper tube that can be used in fuel gas distribution systems are Types K and L, up to and including one-inch outside diameter. Both type L and K are used for underground lines.

What is the best pipe to use for natural gas?

CSST tubing, or corrugated stainless steel tubing, is good for installing gas appliances. These corrugated pipes can bend around corners reducing the number of joints and fittings. Easier to work with than steel pipe and weighs a lot less.