Reverse osmosis is excellent, cost effective, removes any concerns about “excess” sodium (only small numbers of people are affected by excess sodium), provides safe, great-tasting water without all those minerals in your water (that are essentially worthless for the your body’s use as the are not chelated – a form the body can readily use). A three gallon storage tank is adequate for the average family of six as the EcoWater 375 RO that was recommended to you will produce over 40 gallons per day which means if you totally use up your storage tank, it will refill in a little over an hour. If that’s not enough, then add a second tank for a slight additional cost. We do this on occassion for farmers that need extra water in the morning before they go to the field.

As for the amount of carbon in the ERR 3502 R30, it will remove all of the chlorine (unless it is excessively high) for the lifetime of the unit – it is warranted to do so. Our tests have indicated that it does so completely.

Salt efficiency and water used during recharge are unmatched in the EcoWater unit. The Kinetico unit is a good unit but it will use more salt and water than the EcoWater. I’m biased but I would choose either the EcoWater or Kinetico before the Culligan unit. I’m a detail person and have carefully researched every unit on the market and the EcoWater is the best.

I’m actually prefer EcoWater’s ERO 450E to the ERO 375 because it has more eco-friendly replacement filters and comes with a monitoring system that helps you to know when to change your filters and ensures that you know your water is good everytime you water – it flashes a light to tell you the quality of your water.

My credentials are nearly 25 years in the business and I’m a Certified Water Specialist V (certified by the Water Quality Association – http://www.wqa.org)

Hope this helps.

Kirt R. Poovey, CWS-V