Quote Originally Posted by BlueBear
Licking the glass, sounds like mine. Sounds like a solid set up so far, sure it took quite a bit of work to get it all up and running. One thing to keep in mine, over at IC many folks are trying to use all air pumps outside of grow room when using CO2 for the fact that the pumps will inject CO2 into the root system threw the water and possibly be counter productive. Do you have any thoughts on this?
What are you placing clones into, RW or strait hydro rocks? If RW do you still allow the water to touch the RW when raising the water level to the bottom of the inside of the net pot when establishing the root system???
Adieu
yes the pump sits in an area that is fed cold air and not pulling air directly from the room. Its also high up in the room, not on the floor. The clones were done in Rockwool. The RW sits in hydro rocks in 5.5" netpots. I never saw a need for massive netpots, theres plenty for roots to grab ahold of. At the beginning we put the water level about a half inch above the bottom of the netpot. With all the bubbling action, high water level (the RW is really only a couple inches above the water level at this point), and the wet atmosphere there is no problem keeping the RW wet. The RW sits right below the surface of the netpots, one layer of hydrorocks on top. Once in awhile...if the RW looks really dry I will pour some of the res water through the rocks.

As of right now, the water is around 1.5" below the bottom of the pots. Every pot has great roots coming out into the water. PPM is around 1000. There is no burning. They have all been topped. Water temp stays around 68. The 6" fan is at about 25% power and the room is a solid 73-75* F with a humidity that roams between 30 and 40 (sometimes getting to 50 when it rains). If I turn the fan on full speed the room goes down into the low 60s. I have the fan on bungie cords, it barely makes a sound. The airpump is far far louder. The hood is about 18" from the canopy. Great green, fat roots. We have about 4 weeks left of veg...which has me extremely excited.