Setup auto water change... oipes vibrating

[takagari]

I'm having a problem.
I used toro 1 inch valves for irrigation. But when I open it. The pipes vibrate and shake.
The only thing that could be causing this is im thinking the valve is not opening and is actually popping open and closed.
I'm unsure how to fix it

It may be water pressure. I have 58 psi coming in.
This goes to the thermo regulating valve on half inch pex. Then out to 3/4 pvc.
Then to the manifold. I've gutted the syphon stops.
So its not them

I'm worried I'm losing to much pressure from going down to half inch.

Awaiting a pressure regulator.

Thoughts?

 

[Ulu]

This sounds like a water pressure regulator hammering (hydraulic shock).
I had this repeated hammering on my new kitchen faucet, which got worse as the internal regulators slowly plugged.
I threw them out = end of hammering.

Now if it just hammers once when the valve is opened, that's different. Just add an air chamber.

 

[duanes]

Agree with Ulu, sounds like water hammer.
I would get this whenever first opening valves, on my semi auto system in the states, always went away after a few seconds.