Water hammer can occur in both hot and cold water pipes. It’s caused by a sudden change in the velocity of water flow, like when a valve or faucet is quickly closed. This sudden change in velocity can cause a pressure wave to travel through the pipe, creating the banging or knocking sound that is characteristic of water hammer.
The main cause of water hammer is water pressure that is too high, which causes the water to move too quickly through the pipes. This can happen in both hot and cold water pipes, and can be caused by a variety of factors such as worn out valves, loose pipe connections, or improper pipe installation.
In some cases, the problem is more likely to occur in hot water pipes because hot water is less dense than cold water, and therefore is more susceptible to changes in velocity. However, it is possible for water hammer to occur in both hot and cold water pipes, so it’s important to address the issue as soon as it is detected.
Read our earlier post What is Water Hammer and How to Stop It here
Thank you for the information provided. Great.