Jarniscipus
Member
Hi everyone,
I have severe water hammer in my indoor copper pipes when my irrigation system starts up on the first zone. I am on a well, 1 ¼” feed to expansion tank at approximately 25 GPM well pump, 65 PSI set if I recall, 1” irrigation line, 20 feet is copper and then 200 feet of poly to the first irrigation valve. After the first irrigation valve is about 1000 feet of poly pipe to the first zone head. I’m thinking that when my irrigation valve opens, the pressure drops momentarily and the slug of water from my expansion tank or well pump starting up hammers the pipe. There is a big pressure drop on my gauge when the irrigation valve opens up. Any thoughts on how to fix this problem? Thoughts on is there an irrigation valve that opens extremely slowly? Perhaps a 1” arrestor or larger at multiple points? I should note this is the only hammer I ever get in my house, it wakes us all up and it shakes the house and there is never hammer on valve closing. Thanks!
I have severe water hammer in my indoor copper pipes when my irrigation system starts up on the first zone. I am on a well, 1 ¼” feed to expansion tank at approximately 25 GPM well pump, 65 PSI set if I recall, 1” irrigation line, 20 feet is copper and then 200 feet of poly to the first irrigation valve. After the first irrigation valve is about 1000 feet of poly pipe to the first zone head. I’m thinking that when my irrigation valve opens, the pressure drops momentarily and the slug of water from my expansion tank or well pump starting up hammers the pipe. There is a big pressure drop on my gauge when the irrigation valve opens up. Any thoughts on how to fix this problem? Thoughts on is there an irrigation valve that opens extremely slowly? Perhaps a 1” arrestor or larger at multiple points? I should note this is the only hammer I ever get in my house, it wakes us all up and it shakes the house and there is never hammer on valve closing. Thanks!