[Still learnin]

Another post has me wondering about something I'll face soon. How exactly do you winterize an in ground irrigation system if it doesn't have a back flow preventer?

 

[g-man]

There has to be a disconnection point. If not, get a saw, cut the PVC and add fittings to connect to.

 

[wardconnor]

Another post has me wondering about something I'll face soon. How exactly do you winterize an in ground irrigation system if it doesn't have a back flow preventer?

I just did mine.

About 50 or so psi. Just do one valve at a time.