We had a water filter installed on our outside faucet to fill our pool and wash our vehicles. What a difference this made. We filled our above ground 7000 gal and the water was perfect. No rust brown color. And we only had to fill it once, not 2 or 3 times in the past saving us so much money in water and chemicals. It was our best investment this spring. Our pool looks great out on our acreage. Thank to a great team of water experts!