Reservoirs: What functions occur after the water is pumped from the reservoir to the top of the unit?

The excess water that travels through the pine filter goes through water channels and passes through (2) additional sub filters ending up inside the small reservoir built into the front of your Fresair. The return pump is located inside the small reservoir which takes all excess water and pumps it back into the main reservoir […]

Reservoirs: Do I need to fill the reservoirs with ice?

No, ice will not hurt the system but it is not necessary as the difference in thermal sensation will be minimal.

Reservoirs: What different types of reservoirs are there?

For step vans and van conversions, there is a larger 18L flat reservoir (installs vertically or horizontally internally) that can be filled by hose, by a pump from your main water tank, or the unit can even be connected directly to your main tank. Alternatively, the S7i has an internal reservoir, within and out hoses. […]