Has anyone heard of a product from Australia, available online, called Dog Rocks? Apparently it's a rock which you simply put in your dog's water, and it prevents bitches wee burning the lawn. I'm tempted to buy one, but I'm wondering if anyone has had any experience of this before. It's meant to be perfectly safe, by the way.
Karen.

The only way something ingested will do the job is by altering the acidity of the urine which can lead to problems such as kidney stones.  The best way, is to irrigate the lawn with a watering can, rain water from a butt please ;) over the spot where they have weed or learn to live with a few brown patches that soon green up again better than ever :)

Saw them at Crufts but it seemed rather too expensive as we have 2 water bowls and you have to put the rocks in each one. :-)