Q: Do I need a valve and timer for this?
I tapped into my bckyrd PVC in order to add palms and plants on a drip system. Got it all working, but drippers will not shut off unless I close the backflow valve on the side of my house. When I close this valve, the front yrd irrigation will not turn on. Should I not be able to control the bckyrd also with the timer I already have or is there something wrong with my setup or do I need to put in a irrigation valve and timer past the backflow. Please, please help if you know. I don't want to keep doing this manually b/c I may forget and I just put in the landscaping myself...lots of work and money would be wasted.