What is a favorite brand of master valve to buy?

[tmcgahey]

@Xrev

Motorized Ball Valve- 1" Brass Ball Valve with Standard Port, 9-24V DC and 2 Wire Reverse Polarity by U.S. Solid Amazon.com

I don’t know…I’m pretty sure I’ve seen posts of people using these types of valves and Rachio returning a zone fault because they require to much power to operate.

Rachio detected a fault in zone master valve with a motorized ball valve

I installed a US Solid motorized ball valve (9~24V AC/DC) before the backflow preventer as my master valve. Half of the time, it fails with message Rachio detected a fault in zone master valve while running a schedule on your controller, so basically, my irrigation system is so unreliable and I can not trust it. How do I do some debugging? Thanks.