Low pressure in zones

Hussein Diab
Updated at 2019-07-29 16:36:31 UTC
Topic: Troubleshooting
Hello, I've noticed that 2 out of my 6 zones suffer from low to no water pressure. I tried removing the nozzles to test but the water kept barely coming out. I know the solinoids are working because the water is coming from the zones, but how can I understand why there is super low pressure?
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