Well after messing with my sprinkler system this weekend it appears only 2 of the 6 valves I have are functioning properly. It appears to be the solenoids. Also when trying the sprinklers(I had to swap out the solenoids on the non-working valves) Only 2 zones have enough pressure. The others vary how much they water but one zone couldn't even get the sprinklers to pop up. So I'm guessing I have some broken lines.

I removed the sprinklers and flushed the lines to make sure nothing was in them. I also swapped sprinklers on one zone that worked fine to the non working sprinklers and had the same problem. I put the sprinklers back in original spot and they worked fine.

Since we've got a huge patio and driveway(along with sidewalks) cover my existing lines now I can't dig up the busted lines. I can't even run new lines to my existing valve manifold(it's at the back of the house with a 20' x 20' patio over top of where the lines would need to run).

After doing some reading I think it might just be easier to simply start over. I could build a new manifold and valve station on the side of the house and run a line right from the water meter to it. I would have electrical right there for the timer control unit so that's not an issue.

While I'm at it I think I'd go larger than 3/4" pvc like we used last time. I figured I could run 1" to maybe even 1.25" from the meter to the new valve manifold and then run 1" to the sprinklers.

What I'm not sure about is the best way to connect to the meter. Should I simply tee off just after the line comes out of the meter(3/4" copper) or is it possible the meter would have a larger outlet that is stepped down to 3/4" after it comes out of the meter? If that's the case I'm guessing I'd be better served by hooking directly to the meter and have my main house line teed off my new line.

Thanks,

Brad