Hey Fletch, I did try to PM you, I just had a question about my ppm being low while seemingly using a full nutrient load. Maybe its my truncheon.....

Anyway, Fletch, I like your CO2 cycle. I don't have any air con, so heat is an issue and have to turn on my vents 45min out of the hour. So I inject for 15 min and then vent. fun. I vegged for 1 week b4 12/12 and am using 53 sites of the Afgoo. I hope mine go for 5 weeks! That would be a nice time frame.....