Hi Sue C-
Glad to hear your pup is doing better. Did you trying typing “low sodium” in the search bar in the upper left under your sign in? There are a lot of posts on the forum on this subject.
As far as the crystals in the urine go, making sure your dog gets as much moisture/water in the diet as possible is really important. I always add a little water and some canned food to my dogs’ meals. For my cat who also has had issues with crystals, I mostly feed canned food to him and still add water to it.
Plenty of bathroom breaks are also important to keep the urine from getting stagnant.
