Yes.
Also, your stabilizer could actually be much higher than 100. Tests can't differentiate readings past that value. Order the K-2006 and then run the CYA test on a diluted sample. Take one part pool water and mix it with one part distilled water. Use that water for the CYA test and then multiply the results by 2. If you still get a reading of 100, repeat it but use one part pool water and two parts distilled water and multiply the results by 3. That will help to give a better idea of what your CYA level actually is.
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