Cooling AC fan location

[jackalcleo]

Is it better to place on the main tank or below the sump? Which is better? Have been putting on the main tank and wanted to place below sump but don't know it works or not. Anyone try before???

[hotlemond]

On top is better because of the bigger surface area to cool.

[ervine]

i found that my DC fan blowing across my 1.5ft sump is more effective than my AC fan blowing across my 2.5ft tank...

I suspect it's because the sump has more water movement especially cascading here and there which result it better evaporation...

not to mention for some reason my DC fan feels like it's moving more air than my AC fan...

[hotlemond]

i found that my DC fan blowing across my 1.5ft sump is more effective than my AC fan blowing across my 2.5ft tank...

I suspect it's because the sump has more water movement especially cascading here and there which result it better evaporation...

not to mention for some reason my DC fan feels like it's moving more air than my AC fan...

Mmmm, you got a point there. Plus it can help cool down the cabinet inside.

[greentea]

hmmm ... will relocate my fan into the sump to try if it is better ...

[Clownfish]

it goes to wat u wanna the blow job to be at....

mine is blowing across the surface of my main tank cos i wanted to blow away the hot air that was generated from my MH

if u wanna ventilate ur cabinet, u can always use another cheap 12 V DC fan n attach it to ur ventilation slits... that blows outwards to improve ur sump ventilation

[jackalcleo]

thinking also of trying to blow at the sump surface. However 1 question is that my tank water level is quite high so fan is blowing alright but sump is only half full so will fan cooling be affected???? Sump is 1.5ft height.