Conflicting Numbers

Lawtyger

Well-known member
Mar 11, 2016
121
Tampa, Florida
Probably not a big deal in the grand scheme of things, but since I happened upon it after trying to figure out my target range for FC with my SWG pool, it seems the FC recommendation on these two pages is different:

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This has been brought to the forum's attention before.

Go with the top one. Meaning 4 -6 The CYA chart states 4 - 6 for a CYA of 80. 3 - 5 for 70.

CYA readings are very "range-ish" and a somewhat subjective test. Better to err on the high side. If you have a CYA of 70, a 6ppm FC sin't going to hurt anything.
 
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