When water is running, there is quite a loud noise at the entry point to the house. We like to run our irregation system early in the AM and the noise awakens guests that sleep in the bedroom immediately adjacent to this entry point.

When water is running, there is quite a loud noise at the entry point to the house. We like to run our irregation system early in the AM and the noise awakens guests that sleep in the bedroom immediately adjacent to this entry point.

Do you have a PRV (pressure reducing valve) Installed where the water enters the house? (see image)
Let me know, Tom