We have very hard water and sometimes it has a slight smell of chlorine (which makes the ice cubes unusable). Also, I'm mean and lazy - I'm tired of going to the store every two weeks for 25 (in 5 x 5 gallon bottles) gallons of filtered water. Drag them from the car to the basement, and then from the basement to the kitchen. We now have clean, clear drinking water, coffee, cooking, baby food and an aquarium. Plus, I now have extra counter space that used to have a water dispenser, I don't have to lug around (and refill) those five-gallon jugs anymore, and I get compliments (unsolicited) on the quality of ice, coffee, and drinks (made from powder mix) and Water produced by this system. Before that I tried another reverse osmosis system but had difficulty installing it due to some broken parts. This one was cheaper and I installed it (two sinks upstairs in the kitchen and downstairs in the laundry room) in less than two hours. It has been providing clean, clear water for eight months. I bought an inline turbidity meter (search Amazon B001EHAZGW) and the readings are still (after 8 months) between 340-360ppm input to 32ppm and 36ppm output. Please note that for the second location installation, I had to purchase additional hoses, spacers, and a faucet from the hardware store ($15 total). In the next month or two I will be considering replacing the sediment and charcoal filters and adding a permeate pump (search Amazon B0056C1HX6) for extra pressure in both sinks. Pressure is fine now, but aside from being cheap and lazy, I'm also impatient -- at any given time, the faucet is dispensing about 1 to 1.5 ounces per second. I installed this unit in the basement and ran the pipes up to the kitchen sink instead of trying to install it under a cabinet. I imagine it would fit in an under sink cabinet, but would have little room for additional storage and potentially inconvenient access for maintenance and/or repairs. There are significant water costs associated with the treatment of filtered water. I would guess that for every gallon of pure reverse osmosis water, there are three to four gallons of wastewater (brine water). I decided to collect some of this waste water in a watering can that overflows into my sink. The water was used to water the houseplants weekly as it was installed without harming the plants. I would recommend this device to anyone looking to purchase a reverse osmosis system.
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