it says it can hold 4.5 gallons...it has a worthless, pita container for filling...i just tossed this aside and dump 3 milk jugs of water in every 2-3 days...i`ve got it running while lights on(12hours)
As for the area i`m covering, there`s probably about a bajillion variables here...i`ve got a 7.5x8 flower room and a4x8 veg room...i`ve got 4 fans in the wall between veg and flower exchanging air between the 2 rooms(2 going one way...) and i`ve got a 8" fan, and two 6" fans sucking air from flower to the outside(basement window) 4000 watts HPS in flower and 1200 watts T5HO in veg = a lot of dry heat...
Without the humidifier, my guages woudn`t even register...with it, i`m in the 30`s...i`m hoping my stomata`s/tomatas
are happier
What are you using now? 2 smaller tabletop types?
and these 3 fans above helping to disperse