I feel the need.....the need for GREEN!
A GREEN lawn that is. Having owned my house in So. Cal. since 2000, I noticed in 2003 that most of the original Lawn Genie pop-up sprinklers in my front and back yards were starting to fail: Not retracting, broken nozzle tips, and leaks. I got a gift card at a local home improvement store and decided to give these TORO 570 pop-up sprinklers a try. The ARC nozzles come preinstalled on top of the sprinkler bodies so I didn't have to purchase them separately.

Installation was simple: remove old sprinklers by gently pushing aside grass and soil with a small shovel and unscrewing the entire sprinkler assembly. Occasionally the top of the sprinkler body cap would unscrew by itself so a pair of adjustable joint pliers was used to grip the entire sprinkler body to remove it. The old sprinklers were wider so screwing in these svelte Toro 570s were a cinch. No plumbers/teflon tape was necessary. Be careful not to push too much dirt inside the pipe connectors. A little bit of dirt is easily sprayed out and any large objects can be removed from the filter by disassembling JUST the top cap of the sprinkler body. The ARC adjustable nozzles are really helpful in setting up the exact angle of spray necessary for each corner of my yard; just turn on the sprinkler control and twist the top portion of the nozzle to adjust. The pop-up section also has a clicking detent to prevent it from rotating after it's set.

Overall: The Toro 570 3" sprinklers that were installed in 2003 are still working well but the tops of the sprinkler body caps are showing signs of UV degradation/wear. I've switched to 4" in 2008 after allowing my lawn to grow longer which helps in decreasing watering time, fighting disease & weeds, and provides a more lush and DEEP GREEN lawn. However, your lawn grass type may have different requirements.

It's Great to see some consistent GREEN (lawns) with all the economic turmoils around the world.

Good Luck!