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What is Reverse Osmosis (RO) in the water purification process?

Reverse Osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules and other particles from drinking water. It is the opposite of the natural process by which moisture is taken up by living cells. With plants, special cell walls act as the membrane through which water passes, bringing with it nutrients that feed the plant. In water purification, a synthetic membrane separates water with a high concentration of contaminants from water with a low concentration. Reverse Osmosis forces water with a high concentration through the membrane to the other side using normal water pressure. Only molecules of water can easily pass through that membrane; so the water emerges on the other side purified. This leaves the impurities behind and rinses them down a waste drain. Learn more…

Does Reverse Osmosis remove fluoride from the water? Isn't fluoride necessary to reduce cavities??

Crescent Hills’ water purification system can remove over 90% of the fluoride in water. Fluoride occurs naturally in both the earth and water, and is often added artificially to municipal supplies to help prevent tooth decay. The long-term effects of fluoridation of public water is still unknown. Recent studies indicate that it may not be as healthful as originally thought, and has little benefit for teeth after childhood. Consider, too, that humans only consume about 2% of total fluoridated water. Further, there are more prudent alternatives to fluoridating an entire water supply. The application of fluoride tablets and vitamins that may prove safer. It can also be a more precise dosage for children.

What kind of maintenance will my water purification system require?

You will need to replace filters every 12 months. Your Crescent Hills representative can recommend the optimal change-out period based on your usage. We also suggest changing the storage tank air charge when we sanitize your system. We do this at no cost to you.

Can Crescent Hills connect their under-the-counter system to ice makers, refrigerator water dispensers and instant hot water dispensers? What kind of maintenance do these require?

We can definitely do that for you. We will need to run a water line from under the sink to the refrigerator. The tubing we use should be plastic. Existing copper tubing is often corroded and scaled from tap water. Purified water running through it may dislodge this buildup and create problems in the ice maker. We recommend copper tubing NOT be used unless absolutely necessary. Crescent Hills can supply a special ice maker hookup kit that includes all tubing and fittings required for the typical ice maker and/or refrigerator water dispenser connections.

What happens to all the organic and inorganic impurities removed by the Crescent Hills water purification system?

The system automatically rinses them from the membrane surface and washes them down the drain. Unlike filters that trap impurities, the membrane we use is self-cleaning. As water flows across the membrane, it becomes divided into two streams. The first is a production stream. This is the purified water that is forced through the membrane by diffusion. The impurities are left behind. The second is a concentrate stream. It serves as a rinse that carries those impurities off the membrane surface and into a drain. As a result, accumulation of impurities on the membrane is slow, keeping it clean and effective over time.

How expensive would a Reverse Osmosis water filtration system be for my home?

Crescent Hills offers free consultations for your home drinking water needs.  A Reverse Osmosis system generally sells for $680.  Our systems are also available to rent.

If you have not found the answer to your question in any of our resources, please submit your question to our staff. We would be happy to answer it.

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