I'm using the API to call public/zone/:id/start to open a valve on demand and run it for an hour. It works fine, but the valve opens for another hour without an API call after about a day. It's recorded in the watering log but I haven't made an API call.
I'm using an ISY from Global Devices to issue the call. I'm 98% sure the ISY isn't sending it so I'm wondering if this is somehow designed behavior for the Rachio.