I started this thread in the landscape section. It needs to be here because I got a problem and I'd appreciate some help. I did a small landscape job around a pool. I had to remove the existing sod with a sod cutter before preping the beds. I didnt get the customer to show me that the irrgation system worked properly becuase they where out of town and i couldn't get to the garage. So I did the job. I busted one head with the cutter and of course replaced it. No biggie I only went down a couple of inches. That was last week and yesterday I went by to do a follow up visit. The lady told me the landscaped area zone comes on anytime any other zone comes on. After the landscape was complete here is what took place: I found a valve close the area landscaped area. I turned it on manually but I didn't get anything. I mistakenly left it in the on position. Then yesterday I turned the valve manual to off. And that took care of the problem. I was confused though. I ID'd that valve as zone 6. If I opened the valve nothing happened unless another zone come on. I turned it off and and begain testing each zone because the customer didn't have it labled or know what position belonged to each zone. Because I had z6 valve closed z6 didn't come on until I got to zone 9. Zone 9 comes on and includes zone6. but this time it ain't going through the z6 valve. So that tells me they have a valve that controls zone 6(landscape) but that zone is also fed by zone 9 controller. The reason they never had the problem with zone 6 firing along with all zones is because it has never been left on manually. And Zone 6 doesn't work be itself because it obviously isn't connected to the main. I don't know if that makes any sense but to me it means a really messed up plumbing job and they really believe I messed it up.