Pipes Banging

[Darcy]

I have 2 problems. When the kids run off the water quickly (single push/pull lever) the pipes make a thuding/loud Banging sound. Also when 1 person is in the shower, and someone else runs the water, the pipes in the shower bang violently. I have 2 showers doing this, and they are both about 16 years old. Could the shower issues be the valve's?

[markts30]

What type of piping is the water supply in the house?
Sounds like unsecured lines...

[ked]

Install water hammer units see water hammer post.

[chassis]

Pipes also could be loose. I had this problem in a shower, and in the demolition/remodelling process I found that the pipes were not secured to any wood framing and were very very loose. The new piping I installed was secured to framing members and is now firmly attached.

[Darcy]

If it is in fact unsecured pipes. Is there anything I can do without tearing holes in the walls to secure them?

[jadnashua]

NO...if the pipes are flopping around, you need to secure them.