You need to get a drop-based test kit, test your water daily, and take a look at the best-guess table (First post in this forum) that is based on your CYA level, and that will tell you when to add it.
Janet
You need to get a drop-based test kit, test your water daily, and take a look at the best-guess table (First post in this forum) that is based on your CYA level, and that will tell you when to add it.
Janet
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