Temp reading on the POOLMATH App

Billtkat

Well-known member
Apr 25, 2020
117
Oro Valley, AZ
When it ask about temperature , is it out side air temp or water temp ? Outside changes a lot , water not as much - Does it really matter and if so is it that minute you test or better method to record ? My water is around 85'ish but outside can be over 100 in the day so want to check - thanks
 
It's water temperature - and water temperature affects the CSI calculation. Since you have a plaster pool and are in Arizona, you may wish to track your CSI. CH also affects the CSI.
 
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