[Kwigybo]

Originally Posted by Ruskointhehouse

why are you exhausting via the bottom of the grow? heat rises - vent from the top man.

Well the cooltube duct runs parallel across the top and out of the tent, then a 90 degree bend down to the floor hole. I did that cause I can't vent into the floor above as I'm ground level.

[Kwigybo]

Originally Posted by Granger2

Forget axials. The do little actual air movement. Good luck. -granger

lol yeah I'm finding that out.

[mexicani-ar]

.

I have 18mm Mdf do you think it Would be any good to reduce noise from an 8ins rvk vent fan I have it on a 5 step variac controller on number 1 but fan is too loud

[wutwut]

Hey, does TD-silent & TT-silent have any other difference than weight? Which one you recommend to bedroom:
1. Vents TT-silent-M 220/340
2. S&P TD-silent 220/380

Originally Posted by wutwut

Hey, does TD-silent & TT-silent have any other difference than weight? Which one you recommend to bedroom:
1. Vents TT-silent-M 220/340
2. S&P TD-silent 220/380

I was reading on here that the td silent are great fans and guys 200mm
Fan is quiet and his oscalating fan is louder

[stewart169]

Originally Posted by wutwut

Hey, does TD-silent & TT-silent have any other difference than weight? Which one you recommend to bedroom:
1. Vents TT-silent-M 220/340
2. S&P TD-silent 220/380

I have a smaller TD silent 100 and it's quieter than my tower oscillating fan. They are a bit pricey but worth the stealth to me. There may be quieter but I have not compared.

[Xanode]

About a year ago I upgraded my 1x1x2(400w hps) bloom tents ventilation system from:

bodged up pc fans strapped to the tent intake and outtakes, open batwing hood, no filter. Had high temps, high RH and the place of course stank

To:

2x 6-inch hyper fans for intake/outtakes, air cooled hood, standard ducting and carbon filter. All conditions fell into what looked like the right parameters, temps maxed out at 27c and RH never above 65%.

The upgraded ventilation runs like so:

Duct intaking from window to intake fan inside tent via duct, then I have a couple of household fans circulating air inside the tent,

the exhaust is setup like this:

carbon filter and fan attached, fan sucks tent air through filter, pushes it through duct and hood and out some duct, out another window. Pushing the filtered exhaust air through the hood eliminates any smell from escaping from hood and duct air since it's been filtered

I did it in hopes of making life easier, but not so.

Ever since I have had a drop in yield and quality by about 30%, I have tried everything, new bulb, genetics, etc..

Could I be over venting? Although i adjust the fans to run at slight neg pressure, can these be causing some kind of problem?

Thanks for any help.

[FredyJohnSmith]

Great post. Can you carbon filter in case you are living in areas where air quality is not that good?