This guy makes a good attempt to winterize, but you dont need to dissemble the backflow. Open all 4 test cocks and 2 shut offs to a 45 degree, it will be good. Be sure to close all sprinkler zone valves after blowing out
My first in ground sprinkler system. I waited too long to call an authorized rep to initiate the system. Six week backlog for seasonal startup. Well meaning friends & neighbors have at least got the system functioning. Previous owner definitely did not winterize the system. External copper feed pipe split in two places under deck. When the rep shows up (early June) I’ll have a full diagnostic and schedule the winterization. Your video was extremely helpful but it seems my backflow valves are inside the basement rather than buried outside.
Quick question when blowing out the sprinklers do the solenoids have be energized? And also my system has a drain valve should I keep it open or closed thanks and great informative video👍
Hi. I open each solenoid before blowing that sprinkler circuit out. As for your drain, if it drains all the water out you may not need to blow them out but just to be safe, close the drain and blow them out. Good luck!
