I used this company to make my grass green up after the winter season. They told me there product is 100% Proven and will help your yard tremedously. I have irrigations so water wasn't a problem they problem was the application they put down was to strong. I will never use this company ever again I would think 3 times before using them. It cost me over $1800. to get my lawn back to it's green condition after having another company diagnois my condition. I think I was being scamed into buying there product so they could find more problems and keep coming back for more and more money.