I just saw your reply (not sure why I wasn’t emailed). We definitely have a leak in one of the pipes, the water just puddles and runs under the sidewalk. We just planted all that landscaping and mulch. I hate to dig it all up to find the leaking pipe. At the time of planting, I thought the system was done, due to the demo in our backyard.
I appreciate the tips on those Hunter heads. These heads are likely pretty old, so a new upgrade would be a positive. Once I get the leak fixed, and system back on, I’ll upgrade.