Pets and water? We had a very nice filtration system in the RV and it made the water here in Zihuatanejo wonderful. After the second year of cat urinary tract infections, second year with three courses of different antibiotics, we had our "Aha" moment! We switched him and the dogs to bottled water, there hasn't been an issue in 2 years. We decided that we should change, too. Our water is delivered weekly for 24p per garafon and the guys carry them up two flights of stairs for us for a minimal tip! Tastes good, too!