1. PRESSURE. The greater the water pressure, the better the quantity and quality of the water produced. If the quality of your incoming water is average (between 300 and 700 parts per million of Total Dissolved Solids), you will need water pressure of 40 psi. (If your pressure is less than that, we carry a FilmTec membrane which may work for you or you can buy a booster pump from us.) Water pressure of 60 psi is ideal.
2. TEMPERATURE. 76 degrees is the ideal water temperature for R.O.; 40 degree water
will cause the production of R.O. water to fall to half of that at 76.
The maximum water temperature recommended is 85 degrees.
3. TOTAL DISSOLVED SOLIDS (TDS). The higher the amount of dissolved
contaminants in the water, the lower the quantity of water produced. A
high level of TOTAL DISSOLVED SOLIDS can be overcome with additional water
pressure.
4. MEMBRANE. Different membranes have different characteristics. Some
produce more water than others; some have better contaminant rejection
capabilities; some have greater resistance to chemical abrasion for longer
life.
The Special Performance (SP) membranes made by FilmTec combine the best of
these characteristics and are considered the finest membranes in the
world. As you might expect, they are also the most expensive, but easily the best value for the performance they offer. For more information about the FilmTec membrane, please Click Here.