Water Hammer Arrestor

[jonyyuma]

The upright air pocket piping does not have water through flow. There are fears the stagnate water may allow bacteria to multiply and eventually contaminate the water line.

at one time they were probably maditory in the regulations.

Okay, that was what I was expecting to read....They are about 12 inches long and above the hotwater tank. It made the funny sounds with water flow..Our public water has chlorine in it per county regulations..