Today I assembled my CO2 rig for this grow.
Objectives:
Biomass-based CO2 source instead of tank fed (cost)
Remote Reservoir (Outside of the tent)
Pump and digital timer delivery system
This system's layout was suggested by my grow store guy...
1 standard, 8-program digital timer...
One standard cheapo styrofoam cooler...
A MyCO2 Bloom Box, 1 standard 2-port air pump, 2 8ft lengths of tubing...
Cut a notch out of the edge of the cooler for power cord and delivery tubes...
...like so...
mixing the two sections of the Bloom Box together to begin the reaction...
exposing the vent for the CO2...
put the Bloom Box in the cooler with the air pump...
put the cooler lid back on...
put the cooler into position over the cab...
route the tubes through a hole in the plywood above the cab and then through the power cord access through the tent...
route tubes through hook on ratchet hangers on light fixture (exiting above the plants)
another shot of that...
place timer where you can adjust or check...
All done.
The theory here is that the timer runs for 1 minute every three hours (8 programs - interval 3 hours - 24hours)
CO2 is heavier than ambient air so it will "pool" in the cooler, filling it up. Since the pump is in the bottom of the
cooler and it has to draw air in order to pump it, it draws the CO2 that is in the cooler/reservoir. So every 3 hours
it empties it out, and for three hours the Bloom Box works to fill it back up.
We'll see how it works.