Didn't work for us. Bought a house that was built 5 years ago. They had artificial grass installed 2 years ago. When we moved in we noticed a distinct smell of urine when the grass was hot or wet. Researched how to get rid of it and saw this had rave reviews so we decided to just splash out and try it as our first attempt rather than trying cheaper methods. We have applied it 3 times now and have ran out of the product. Our grass is 4x6m and it used 2 1litre spray bottles per attempt per solution. It smells ok after application but the next day back to the smell of urine. I emailed to ask for advice before we tried our last attempt as knew we were running out of product, with a detailed description of how we had tried each attempt ... got a generic response saying have we used both solutions etc etc (I clearly stated I had been). Eventually was offered to speak to an "expert" over the phone about it... I told them the hours in which I could be contacted. A Week later I got a phone call bang in the middle of the times I couldn't be contacted (at work) . Tried ringing back later and no response. I gave it another month to see if it made any difference and applied our last of the solution last week. It made no difference. Couldn't be bothered with trying to return it as you have to send the stuff back and we bought the package with the spray bottle. Not worth the hassle trying to ship it back from WA so decided to just take the 100 dollar hit and try something else now. I don't recomend this for anyone that is in a similar situation to us.