What is the best method to keep my female lab from killing my grass with her urine?

Answers:
You have to lower acidity level in the urine by either using green-um or cider viniger (white type)

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There are dietary supplements you can get.

Go to www.arknaturals.com They have all natural, herbal remedies.

Pet stores carry products too. The one I'm most familiar with is called "Green-um".

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There are dietary supplements you can buy to help with this problem, Ive never used one so Im not sure which one works better but here are a few that I found in my fav pet mag.there is Green-Um %26 Grass Saver. If you go to www.petedge.com you will find some of the best prices for almost ALL things pet you could ever want or need!! Best of luck

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Go to a garden store and purchase a bag of Gypsom. You spread it on your lawn in the area affected. It's about $5 for a 20lb. bag. You lawn will return to normal and then just add it when you need it.