Rainbird valve makes repeating thumping
The Rainbird jartop valve that is connected to my dripper line creates a repeating thumping noise. Sometimes it only starts after you turn on a fixture in the house, sometimes it starts as soon as it turns on.
This is different from a water hammer that happens once at opening or closing, this will keep going thump-thump-thump indefinitely until the valve is closed.
I have installed a water-hammer arrestor next to the manifold, but the problem occurs with or without it.
Thanks!
SPRINKLER TALK FORUM - You Got Questions, We've Got Answers »
Help Choosing The Right Sprinkler Products »
Control Valves »
underground thumping
(Mar 6th 2004, 9:23am)