I have read about water melon seed tea being good for kidneys. But even eating a lot of Watermelon will do the job.
Last night, I took 1/2 water melon, passed it thru the juicer and drank the whole juice. Also ate all the pulp. Jucing it made it easier and faster to consume the water-melon.
Try the water-melons. Its safe, will not hurt in anyways. It can only do u good.