First post and looking for opinions from the experts. I've got a spare zone on my controller and would like to run a valve and line to the driveway with a spigot to wash the cars. Im afraid if it is left idle too long the pump will destroy itself. Is there any type of blowout/pressure relief valve that can be installed on the line that could vent if to much pressure builds up. I admit, I'm trying to go the cheapest route here while protecting the pump. IE, I dont really want to have to replace t...
