Apollo Plumbing, Heating & Air Conditioning can help you filter them out so you can enjoy soft water in Caldwell, ID. Did you know that calcium, magnesium, and other minerals are the real culprit behind hard water? Our water filtration service experts at Soft water cleans your car, clothes, and everything else more efficiently. It also tastes better, so your home-cooked meals turn out better. Getting a water filtration system for your home can improve your living conditions and health.