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Old 02/28/2011, 03:12 PM   #1
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Join Date: Jun 2003
Posts: 4,658
Thumbs up How to test for CO2 and what problems CO2 may cause...

CO2 – The Hidden Contaminate

We often get these three questions-
1) Is Carbon Dioxide Destroying my Capacity of my DI Cartridges?
2) Why is My DI Cartridge Not Lasting As Long As It Should?
3) How can I have Silica and Phosphates in my Water But the TDS is Zero?

To answer this question, we have released a simple and easy to use CO2 test kit that has the right precision, the right detection limit, plenty of tests per kit so you dont have to buy refills, and all at low price ($16.95).

TDS meters cannot detect CO2, as it is an unseen contaminate only measured by chemical or pH tests.

Its effect on downstream DI resin cartridges in RO/DI systems is two-fold; a decrease in the lifetime of the DI resin and a decrease in the purity of the DI water. High levels of CO2 from low-pH feed water can greatly decrease DI capacity and can result in DI water with high levels of silica and phosphates.
SpectraPure’s simple CO2 Test Kit can easily and quickly measure this capacity robbing contaminate. Not all water sources have high levels of CO2, but any CO2 in the water will reduce the capacity of the DI resins, so testing is essential to recognize the need for pretreatment to remove this hidden contaminate.

Testing your feed water is error-prone and often futile, as there are many elements in feed water that can aff ect the accuracy of the CO2 test results. Use the CO2 Test Kit to sample your RO water (pre-DI) and compare it to the post-DI reading. This is an excellent indicator of both CO2 presence and the capacity of the DI cartridge to remove it. CO2 in the post-DI water signifies the probable presence of silica and phosphates, as well.

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