About 2 weeks ago I started getting a water hammer like noise from my pipes. The "bump, bump, bump" repeats about 2 times per second and and doesn't just happen once - usually about 4 or 5 times. It sometimes happens when shutting off faucets and sometimes happens when nothing appears to be running.
I have city water and am about 500 feet from the street. The run to the house is 2" PVC with slip joints. No leaks that I can determine. The house is about 5 years old and we haven't had this type noise before.
I have copper pipe in the house and two bladder tanks - one at each end of a fairly large house - the tanks are about 45 feet apart. The one farthest from the water supply is fairly directly connected to the mainline at the inlet to the water heater. The closest one is also at the inlet of another heater not that close to the main line connection.
I checked the charge on the bladder tanks with water pressure off and found it was very low - about 15 psi on both. Thought I had found the problem and aired up the tanks. Still have the issue.
I have shut off some of the toilets, etc to try to isolate what might be causing the problem but have had no success.
We have a water softener. We have no water pressure regulator and I know the pressure does vary some. Am thinking of putting a gauge on it. Not sure if the pressure spikes (I assume that is the issue) are from the water supply of from something inside the house. Don't know that the gauge will help determine the source.
This is making us crazy as it happens at all times of the day and night. How do I figure out what this is? I would think if a valve is opening and closing to cause the noise I would see water flow somewhere.
I have city water and am about 500 feet from the street. The run to the house is 2" PVC with slip joints. No leaks that I can determine. The house is about 5 years old and we haven't had this type noise before.
I have copper pipe in the house and two bladder tanks - one at each end of a fairly large house - the tanks are about 45 feet apart. The one farthest from the water supply is fairly directly connected to the mainline at the inlet to the water heater. The closest one is also at the inlet of another heater not that close to the main line connection.
I checked the charge on the bladder tanks with water pressure off and found it was very low - about 15 psi on both. Thought I had found the problem and aired up the tanks. Still have the issue.
I have shut off some of the toilets, etc to try to isolate what might be causing the problem but have had no success.
We have a water softener. We have no water pressure regulator and I know the pressure does vary some. Am thinking of putting a gauge on it. Not sure if the pressure spikes (I assume that is the issue) are from the water supply of from something inside the house. Don't know that the gauge will help determine the source.
This is making us crazy as it happens at all times of the day and night. How do I figure out what this is? I would think if a valve is opening and closing to cause the noise I would see water flow somewhere.