Rainbird sprinkler APAS leaking
First post, so please excuse if I've done something wrong :)
I have an older model (now discontinued by Rainbird) anti-siphon sprinkler system that was pre-installed in our house, don't know when as house was built in 1970's and we bought in 2007. anyways, yesterday my yard was full of water and when I went outside it was gushing out of my sprinkler area, I figured pvc had busted since I forgot to turn off the sprinkler valve before the recent freeze, we only get 1-2 a year so I forget this stuff...
today I went and inspected it and didn't see any broken pvc but I did see that the valve that controls each section (?) was off and apparently dethreaded itself. the yard is still full of water despite turning off the gate valve to the system, saturated to the point of me sinking a few inches by stepping in the grass. I attempted to reattach the back part and as soon as I turned the gate valve on with any pressure, it shot back off.
now, because this is a discontinued model, would I be able to buy the valves for this unit or will I need to purchase a whole new sprinkler system (looking for the cheap way)? secondly, why is the water still passing through the unit even though its turned off?