Does your municipal water supply use chloramines? Chloramines are being used in more and more water supplies every day. It's currently estimated that 25-30% of the United States use chloramines. There are 3 common ways to determine if your cities water contains chlorine or chloramines.
1. Call your city water supply and ask. You can usually find the number on your water bill or call your city hall.
2. Test for free chlorine and total chlorine using a simple test kit, test strips, or a digital meter.
A. Follow the instructions on your meter or strips to get the values for free and total chlorine.
B. If the amount off free and total chlorine is the same, it means that your water supply uses chlorine for disinfection.
C. If the amount of free chlorine is less than the amount of total chlorine it indicates that the chlorine in the water is bound to something. This would mean your water uses chloramines.
3. Test your carbon blocks for total chlorine as they get exhausted. Most carbon blocks do a poor job removing chloramines and will show an increase in total chlorine after only a few water changes.
If your water contains chloramines you should consider purchasing a carbon block specifically designed for removing chloramines. They may cost more than a typical carbon block but will treat chloramines for 4-6 times longer, which makes them a better value.
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