Hello,
I am looking for advice. I am experiencing major water hammering issue near what I would consider the end of the system in my house where two upstairs bathrooms share a common wall. The hammering sound is happening on both hot and cold sides. The hammering can be triggered by almost any faucet or appliance in the house, upstairs or down; for example, the hammering sound is happening in the same place upstairs, if you are running the washing machine downstairs.
A little backstory:
We recently remodeled both bathrooms and replaced the shower values with new Moen valves. One of the showers used to have minor hammering when moving the lever from cold to hot, but this was minor, and no other fixtures or appliances in the house triggered any sort of hammering. The issue started after we replaced the valves, but I couldn’t tell you if it was exactly right after or shortly after replacement.
What I’ve tried so far:
· I’ve secured all pipes with pipe straps and shims in the entire house. No pipes are moving at this point. I even secured the water heater.
· I installed Sioux Chief mini arrestors on the upstairs toilets – no effect
· I installed a Sioux Chief mini arrestor on the riser running from the 1st to 2nd floor – no effect
· I checked the water pressure in the system – the pressure is in normal residential ranges
· Countless draining / refilling on the system to attempt to recharge air columns
· Checked for water logged air columns– those all seemed good, but I did not check the upstairs shower columns. The showers are the last outlets in the system.
Since the hammer is affecting the entire system, my current guess of why this is happening is because the pressure in the system drops when a faucet is being used, then recharges too quickly and bangs at the end of the system. Is this guess correct?
Is this something anyone has come across before or have any ideas on how to resolve?
I am looking for advice. I am experiencing major water hammering issue near what I would consider the end of the system in my house where two upstairs bathrooms share a common wall. The hammering sound is happening on both hot and cold sides. The hammering can be triggered by almost any faucet or appliance in the house, upstairs or down; for example, the hammering sound is happening in the same place upstairs, if you are running the washing machine downstairs.
A little backstory:
We recently remodeled both bathrooms and replaced the shower values with new Moen valves. One of the showers used to have minor hammering when moving the lever from cold to hot, but this was minor, and no other fixtures or appliances in the house triggered any sort of hammering. The issue started after we replaced the valves, but I couldn’t tell you if it was exactly right after or shortly after replacement.
What I’ve tried so far:
· I’ve secured all pipes with pipe straps and shims in the entire house. No pipes are moving at this point. I even secured the water heater.
· I installed Sioux Chief mini arrestors on the upstairs toilets – no effect
· I installed a Sioux Chief mini arrestor on the riser running from the 1st to 2nd floor – no effect
· I checked the water pressure in the system – the pressure is in normal residential ranges
· Countless draining / refilling on the system to attempt to recharge air columns
· Checked for water logged air columns– those all seemed good, but I did not check the upstairs shower columns. The showers are the last outlets in the system.
Since the hammer is affecting the entire system, my current guess of why this is happening is because the pressure in the system drops when a faucet is being used, then recharges too quickly and bangs at the end of the system. Is this guess correct?
Is this something anyone has come across before or have any ideas on how to resolve?