Click here to find your TDS for your area by using this easy matrix to calculate the Re-Gen frequency (re charge of your system) required, based on your water consumption and the quality of the water you are using. See the comparisons based on the grain content of each system.
To find the TDS of your area Click here and then after you have the reading click the back button twice to return to this page for your area then enter the reading into this page
The quantity of grains relates to the volume of resin.
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