Hello - I just installed the Netro pixie and whisperer to to water our golden goddess bamboos in planters. We have a drip irrigation system and I’m not sure what to put in the “sq ft” parameter in the Netro app. We have a total of 7 planters that are all hooked to the same hose /drip irrigation hose. Each planter is 41″ x 12″ x 18″. What should I list as the sq feet? Is it just one planter or all 7?

Also - does the whisperer talk to the pixie to tell it how often it should water and automatically water as such? Is there anything I need to do to turn on that function? I live in Los Angeles and our bamboos are up on our deck where it gets extremely hot/dry. 

Thanks!