I run mine for 14 hours per day. I run my unit at about 50mg/hr for a 300 total gallon system.

I now run carbon in my system every other week or so for 3-4 days. I don't run it on my skimmer's effluent.

I would like to get a "cap" for holding carbon on top of my skimmer's exit holes. Sounds like a potential for some of Pete's scrap after he builds some of those turbofloater knock off's!

PH and ORP fight each other...kind of. As PH goes up, ORP will go down. I run my ozone during the day when my lights are on. Be careful where your ph ends up during the night if you run the O3 24 hrs a day.

TT