D diciple New member Oct 2, 2006 #1 i set up red sea 100mg ozone with controoler and after 2 weeks it shows my orp @ 150!any help !!
jacob30 Member Oct 2, 2006 #2 Clean probe with white vinegar for 30 minutes and recheck (usually a dirty probe drives up ORP reading believe it or not but worth a try).
Clean probe with white vinegar for 30 minutes and recheck (usually a dirty probe drives up ORP reading believe it or not but worth a try).
