Where to place valves, filters, backflow prevention and pressure reducers?

[kevinro]

@jjbartoszek
@craigjl

Craig. Thanks for replying. I tend to agree with you.

A backflow preventer at the main hose spigot will suffice. Then just have a solenoid valve at each zone. That should do the trick.

Let us know if you have anymore questions.

Thanks