3701-31-04 ( D )(6)(a) / ORP reading shall be 650 millivolts or greater.
Repeat ORP reading was below 650 mv. ORP is 622 mv.
Have the ACC unit inspected to determined why the ORP is low.
Facility Type: Spa
[?] Inspection Type: Standard
Inspection Date: 31-October-2023
Comments |
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ORP is below 650 mv. |