Well this year my doctor removed a kidney stone that was imbedded in my bladder for sometime and I still have another one in my kidney. We live in colorado and it's very dry here. Now I drink 6 glasses of water every day and then probaly one diet coke as well. so I am sure that I am pushing 7 galsses at least a day. I do need additional support because I am noticing that in winter is more difficult to drink that much. PS don't want to have more kidney stones because I am not drinking enough water.