Out along Frenchtown Road the land opens into the last of East Greenwich's farm country, and by the second week of August the lawns out there tell you plainly who has water and who does not. JMG Professional Lawn Sprinklers works that side of the equation — systems started up in spring, heads set and adjusted through the summer, lines blown out before the ground closes in November. A system tuned right is invisible: no dry crescent beside the driveway, no soaked corner by the walk, just even green from the road to the tree line. Rhode Island summers can swing from soaking to parched inside a fortnight, and the whole point of the work is to keep a lawn from noticing. When the neighborhood browns out in August and one yard stays honest green, that is the argument made for you.