just wondering what fans i should use for a 6 inch cooltube.
I was thinking of using two axial fans on iether end like this
Amazon.com: 6-Inch 110VAC 250 CFM In-Line Duct Booster Fan: Electronics
for a carbon scrubber i would use a fan simular with the carbon filter inside the cab & the fan sucking on the carbon filter blowing outside the cab.
only issue i think is a problem is, would two 250 cfm fans like this be enuff to blow enuff airflow thru the cooltube on a 10 ft run, ill be using it to cool a 400 hps, ill be running a pipe from the vent out fan to a drier connection in the wall only another 5 - 6 feet away, would i be better off with only 1 iIN axiel fan, & use a vortex fan for OUT thru the cooltube.
Also thinking of using two of the same fans for the IN air below the light where the plants are, & have a back draft damper so when the fans are off, the dampers close off, so no smells can come from inside the cab going outside. Odvistly the carbon filter will be running all the time, so would i even need dampers ?
Cheers,
Cy