If the pee that is fresh is white or cloudy it's normally a sign of too much calcium, and there could be crystals forming and possibly stones, which is painful and possibly life threatening. You need to get him to the vet to make sure urinary tract stones aren't forming and to check his calcium levels. Then take a look at what you are feeding your chin, is it high in calcium? If they are an adult (over 6 months) they should have a good quality alfalfa based pellet only food with unlimited grass hay, like timothy hay. Mineral chews, cuddle bones, and things like that are not good for them and can cause urinary crystals and stones.