Reply To: Home Ownership Portal › Forum › General › General Discussion › Home Ownership › Reply To: Home Ownership January 10, 2020 at 3:14 pm #154305 Quote ex_goldy Posts: 60GoldenHas donated $ to the upkeep of GPL Up0Down:: If you have hard water it’s a necessity. I have tons of these little mineral granules in the bottom that take up space, cover the bottom and lower heating efficiency. Also it ruins the tank.