[adam]

Thanks for all the replies. I definitely did search through the forums and things tend to go in circles (Use the vet dog food/never use the vet dog food, high meat based protein causes stones/meat protein never causes stones, lowering urine PH helps/ Lowering urine PH causes stones, etc). But I understand there are a lot of unknowns and every breed if not every dog is different. I should know more when the full tests get back with what stones I am dealing with, and then certainly after they are removed and tested (still on the fence with surgery at such a young age but will probably go through with it).

Thanks for the recommendation to find a Board-certified Veterinary Internal Medicine Specialist, is there a search they provide of their members, say by state or do you have to lookup each one?

From all these posts I did gather that water is key, so thanks I will really start upping her water intake by soaking the kibble. She gets out at least 3-4 times a day and gets 20-30 miles of walks a week. She is not overweight at all, about 107 for a female Pyrenees.

Making my own food for the two large Pyrenees I have is not really feasible at this point, I would love to, but that is 220 pounds of dog to feed a day, just not going to happen on my budget. I do give them as much meat as possible though. I like the diet guide Susan linked to and bookmarked to to use when I can.

Pyrenees are pretty tough dogs and my other one who is the same age has zero issues with the same diet. You just don’t hear of Pyrenees getting stones very often, so I was just putting some feelers out there if anyone new something specific about that breed. When I read the ingredients of the “Royal Canin Veterinary Diet Canine Urinary SO” I was just shocked that this was my official solution… feed my dog Rice, Corn, and chicken by-product meal. there isn’t a single true meat in that food. I will stick with the food for now, but here is an article linked to in the forums that pretty much states food isn’t the culprit, it is the water as you all have told me:
http://www.petmd.com/blogs/thedailyvet/ken-tudor/2015/november/water-solution-urinary-crystals-pets-33270