Split off from the topic "CYA is over 100" in testing and balancing. Please remember to keep very complex or technical discussions separate from new member's threads. Thanks! Zea3
CYA testing trick:
If it reads over 100. Don't toss out the solution you mixed... Dilute it and retest.
Add one part tap water and one part of your mixed solution of reagent and pool water. Redo the test and multiply the result by 2.
You can even go one step further if that reads to high. Take the dropper bottle Abd fill with the 50/50 solution. Poor into another vial/cylinder. Add enough tap water to reach the label like you do when mixing the normal solution. Then dump this into the vial with the already diluted solution and mix them. This results in 2:1 dilution and the result is tripled.
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