Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: easy clean on July 29, 2008, 07:59:41 pm
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i have a 300 gpd ro from ro-man, then it runs through 2 x 11 litrte di vessels and into tank.
tds readings out or ro 12. after first di 2. after second di 2. if i only run it through one di still 2. shake them around swap places and still 2.
tds meter is calibrated using solution.
very strange any ideas ??? ???
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Check that the DI vessels have the arrows pointing the right way ie water in water out,2-1 on that`s the trouble.
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How old is the resin you are using, where is it stored this could be the problem.
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Try someone elses meter?
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any chance that both resins are a little old? I've had this before, sometimes resin won't di down to 000ppm very well but will settle around 1 or 2ppm.
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If you change the resin it will give you the answer.
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any chance that both resins are a little old? I've had this before, sometimes resin won't di down to 000ppm very well but will settle around 1 or 2ppm.
I agree with that as I am using some resin I bought with another set up and it will not go to 000 it is 001 and has been for weeks ::) I did change it over and still the same.
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Fill it 3/4th, and shake the vessel while filling, give it a couple of good bashes on the ground so it's nicely packed.