Oxygen Reduction Potential (ORP) Meter

RexO

Well-known member
May 24, 2020
54
Melbourne, FL
Has anyone tried using an ORP meter? If so, where does the TFP method (Chlorine/CYA Chart) tend to keep the ORP over time?
Is it worth buying one? Any recommendations?
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
29,060
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
ORP meters do not work well with the high levels of CYA that TFP recommends.

 
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Summoner12

Well-known member
Nov 16, 2015
87
Riverside, CA
ORP meters do not work well with the high levels of CYA that TFP recommends.

What about for Hanna's BL122 unit meant for pools? Is there a way to get around the issue with CYA?
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
29,060
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
What about for Hanna's BL122 unit meant for pools? Is there a way to get around the issue with CYA?

What chemical levels does Hanna recommend?
 
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