Effective Natural Remedies for Pet Bladder Stones

I have a 9 year old Bischon. When she was 3, she had a degenerative disc and the surgery resulted in her having involuntary evacuation of both urine and poop. She has also had recurring blood in her urine. At my Vet's suggestion, I have been giving her 250 mg of Ester C. No blood in some time. actually, the Vet recommended Vit. C but I learned through research that Vit. C causes Acid which is what causes the crystals in her urine so the Ester C works miracles. She loves it in a tiny bit of peanut butter.