Hmmm no I have never tried it...If I'm at someone's home who actually cares about the colour of their lawn I just water down the area after the dogs pee. There are other products on the market that you feed to your pet but I dont trust those at all as that's messing with the Ph levels of your dog's urine and I cant imagine there not being long-term effects due to it that may not show up right away.
I've never heard of that product. We're having the same problem with our new $3,000 lawn at our new house. We're trying to find something that will help. I try to water down the area when the dogs piddle, but really doesn't seem to help much. I'd be interested in knowing if it works or not.
I've heard that those pills/treats/etc. that can be given to a dog to keep the grass green not only do NOT work, but can lead to crystals in the urine... ouchie. They change the pH of the urine, so it stands to reason that an artificial, super-low pH urine will negatively affect a dog's health.