I have an upstairs shower that creates a slight knocking sound when the shower faucet turns off. Furthermore, I notice this same knocking sound with the same pipe to the shower when I turn on the sink faucet that is three feet away. I was curious if anyone has any ideas before I resort to a local plumber.
I am not sure if this helps with a possible diagnosis and fix, but here is a little history to that shower. A few weeks ago I noticed the shower faucet had a slight leak. I decided to replace the cartridge for the shower faucet. I made the mistake of not turning of the main water supply. I idiotically turned off the incorrect valve. I quickly realized my mistake after getting a nice spray of water when I began removing the cartridge. Anyways, I located the correct main water valve and turned off the correct valve. I was able to correctly replace the cartridge and get rid of the leaky faucet. The faucet works correctly now.
It was not until a few days later that we began to hear this knocking sound. I figured it was a result of my idiotic mistake. My guess was I inadvertently loosened the pipe from a fitting or created a "water hammer". I went through the process of turning off the main water supply and running all faucets till they were dry. Then, I turned the water supply back on and tested the faucets. I did this process twice. Unfortunately, this same pipe still has the slight knocking sound. My only guess is it may be a loose pipe. Unfortunately, the pipe is enclosed in the wall and almost impossible to diagnosis without ripping out the wall.
Again, I hear a slight knocking when I turn off this shower faucet and turn on the sink faucet nearby. Otherwise, I do not hear this knocking in any other part of the house. I am not too worried about the immediate future with this pipe. However, I am concerned this knocking could create more serious issues down the road. I would rather fix this minor issue instead of a major issue at a later date. I am open to any suggestions before I turn to my local plumber. I appreciate any insight you may be able to provide me. Thanks for your time.
I am not sure if this helps with a possible diagnosis and fix, but here is a little history to that shower. A few weeks ago I noticed the shower faucet had a slight leak. I decided to replace the cartridge for the shower faucet. I made the mistake of not turning of the main water supply. I idiotically turned off the incorrect valve. I quickly realized my mistake after getting a nice spray of water when I began removing the cartridge. Anyways, I located the correct main water valve and turned off the correct valve. I was able to correctly replace the cartridge and get rid of the leaky faucet. The faucet works correctly now.
It was not until a few days later that we began to hear this knocking sound. I figured it was a result of my idiotic mistake. My guess was I inadvertently loosened the pipe from a fitting or created a "water hammer". I went through the process of turning off the main water supply and running all faucets till they were dry. Then, I turned the water supply back on and tested the faucets. I did this process twice. Unfortunately, this same pipe still has the slight knocking sound. My only guess is it may be a loose pipe. Unfortunately, the pipe is enclosed in the wall and almost impossible to diagnosis without ripping out the wall.
Again, I hear a slight knocking when I turn off this shower faucet and turn on the sink faucet nearby. Otherwise, I do not hear this knocking in any other part of the house. I am not too worried about the immediate future with this pipe. However, I am concerned this knocking could create more serious issues down the road. I would rather fix this minor issue instead of a major issue at a later date. I am open to any suggestions before I turn to my local plumber. I appreciate any insight you may be able to provide me. Thanks for your time.
