DON'T Buy It!

[Ryobi]

Originally Posted by citybutch

Gardeners that are not licensed and bonded... You should see the golf course sprinkler system we have in our backyard... Literally... an industrial sized sprinkler head... It's gonna cost us $900 with the guy who IS licensed and bonded to fix that plus put in a new shut off valve for the system...

I had to tell him to wait a while before we do it...

Call a plumber. I've installed a few irrigation systems, one on a golf course. There is no special training to maintain or install them. Only special equipment to install them.
A sprinkler co. is going to be the most expensive fix, next probably a full service landscape co. I think I would give a plumber a shout out. It can't hurt. (actually, I think I would look for a retired plumber who does "odd"/side jobs.)