Thank you for the response
So it sounds like I need to at least replace the anti-siphon and place it say about 18" higher than it is, correct?
I guess I should have been more clear on the other part.
1) I turn on a section that is supposed to run for 10 minutes.
2) The section goes on for about 30 seconds than dies.
3) I open the a little release valve on the anti-siphon ( the new anti-siphon does not appear to have one) and the section starts back up, at this point it still has 9 minutes to run.
4) I let it run for a minute with the release valve open, and then shut the release valve. Now it should run for 8 more minutes.
5) After a minute or two the section dies again with 6 minutes left to run, some water might spill from the anti-siphon but not always.
All 7 sections are doing this. Any ideas?
If you want I can take a picture of what I mean by a release valve.
Thank you