From the ArcaMax Publishing, Gardening Newsletter:
http://www.arcamax.com/news/gardening/s-2546-943980
To measure the amount of water your sprinkler is applying, take 6 empty tuna fish cans and place them at various distances around the sprinkler. Time how long it takes for the cans to accumulate 1 inch of water.
This news arrived on: 07/02/2009