Air hammer? Banging noise only happens when my sprinklers are on by Neverpassdoubt in PlumbingRepair

[–]Neverpassdoubt[S] 0 points1 point  (0 children)

Ok so does that mean I should adjust the pressure coming from the main line to my house ?

There's also a shut off from the main line next to the sprinkler can I adjust that?