Ok guys. I know you all hammer others who are not licensed etc. I do not have a commercial applicators nor do I want to get into that part of the lawn industry. Between mowing and bed maintenance I do not have time for it. Anyway on my yard I have some serious weed problems. The atrazine won't touch them. So I talked to my buddy that owns a rather large nursery here and he talked me into Image 70D. I got it at cost not retail or I would not have bothered. That stuff is high!! Anyway I am bout to load up my sprayer and spray the yard. I read on the label that if you have a rather large slope or hill to water between .25 to .5 of an inch of water to prevent run off that may cause damage at another location rather than just your turf. What I am getting at is we are about to get rain here and I am not crazy about getting out in the yard and spraying for an hour only to have this stuff watered down and not work, plus as stated before this damn stuff is expensive. I do not want to waste my time or my money. Thank you for responses in advance.