New To Blowouts
I have no experience blowing out sprinklers systems, I would like to know what you guys do when you blow out the sprinklers.
What is the procedure.
I have a customer that wants us to come do his this year but im not really sure what to do. He wants us to go to the basement to shut a valve off. Im assuming that valve would feed the back flow preventor??
Any help would be appreciated .