With the dearth of rain this spring and summer in my area I have watered more this season than any time in the past 6. Last week after our sprinkler broke I went out and purchased this one available at "Lee Valley" Very adjustable oscillating sprinkler

So far I am impressed in the several times I have used it it does exactly as advertised.

My only concern is its light (cheap?) plastic construction. I must remember to bring it inside in the winter.