Portable Evaporative Cooler (swamp cooler)

Step 5 Running it

You'll need about 6 gallons to fill it and wet the pads. Afterwards, uses about 2 gallons/hour, depending on the humidity and temperature. More holes in the drip ring may lead to more water usage. And that's why the emitters might help decrease water use. For home/permanent use, install a toilet float valve hooked up to a permanent pressurized water source.