Why are my automatic sprinklers leaving brown patches?

Answer by  TheAnswerFairy (2345)

It sounds like your sprinklers are not covering the entirety of the lawn. The brown patches are probably where the water does not fall on the grass. You may need to add some more sprinklers or water by hand.

Answer by  Gingercakes (920)

One possibility could be the water. If the pH levels are off, or the water has some other contaminate, it could be a problem.

Answer by  ZackRoca31 (18)

Your yard is getting brown patches because you are watering the grass during the heat of the day. That means that the water is quickly evaporating off of the blades of grass and the rapid evaporation is causing the grass to burn slightly, leaving brown patches. Try watering earlier in the day.