Hello all,
Well I instaled my new Apex and since then the ORP probe has been reading 140-150 for ORP. I hardly think my tank (which is new) has an ORP that low
I tried to calibrate with 400 pinpoint solution and it didnīt work.
Iīve read that with time the ORP will "break-in" but Iīm having a hard time to believe that its reading is soo way off.
Any thoughts?
Regards
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