ectomorph2013
Member
hi
I have a 4" inline fan at the top of my grow exhausting the air out. I recently added a small 4" bathroom exhaust fan to the bottom of the grow, this lets the light from the room pass into the bottom of the grow. just a little light gets in.
is this a major problem for the dark period, will it screw my grow up. or is a little light ok ?(I know sounds dumb even as i type it, but if you dont know , ASK).
does anyone have any ideas on how to block the light coming through the fan. I only have to worry about this when the light is off, the fan is off when the light goes off.
I was thinking a piece of card attached to the top of the ducting that would blow up when the fan was on, letting the air in and settle back down and block the light when the fan went off for the dark period.
I am open to other ideas..
thanx in advance
Ectomorph , hippy farming
I have a 4" inline fan at the top of my grow exhausting the air out. I recently added a small 4" bathroom exhaust fan to the bottom of the grow, this lets the light from the room pass into the bottom of the grow. just a little light gets in.
is this a major problem for the dark period, will it screw my grow up. or is a little light ok ?(I know sounds dumb even as i type it, but if you dont know , ASK).
does anyone have any ideas on how to block the light coming through the fan. I only have to worry about this when the light is off, the fan is off when the light goes off.
I was thinking a piece of card attached to the top of the ducting that would blow up when the fan was on, letting the air in and settle back down and block the light when the fan went off for the dark period.
I am open to other ideas..
thanx in advance
Ectomorph , hippy farming