2.5
2.2
What will be the reading after 2 days (that is, 48 hours)? When the chlorine level reaches 1.0 ppm, Geoff must shock the pool again. How long can Geoff go before he must shock the pool again?
What will be the reading after 2 days (that is, 48 hours)?
2
48
When the chlorine level reaches 1.0 ppm, Geoff must shock the pool again. How long can Geoff go before he must shock the pool again?
2.5 2.2 What will be the reading after 2 days (that is, 48 hours)? When the chlorine level reaches 1.0 ppm, Geoff must s
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2.5 2.2 What will be the reading after 2 days (that is, 48 hours)? When the chlorine level reaches 1.0 ppm, Geoff must s
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