Can dilluted sodium bicarbonate in high quality water cure (aparent?) kidney disorder in a cat?

At your risk, this is not a medical advice. Tip of a sugar spoon sodium bicarbonate dilluted in (Theoni) mineral water has been sugested by Lambros for stone disapearance. After the pet hospital, Bebis (aged castrated California spangled cat) who has been given short life started drinking a bit more water again. He also visited Veloudina (young female California spangled) at the forest.