The TP Series Dehumidifiers (TP30WKN/TP50WKN/TP70WKN/TP30AWKN/TP50AWKN/TP70AWKN) do come packaged with a drain tube for continuous drainage. You can attach a standard garden hose for continuous drainage, but because the continuous drainage feature relies on gravity to pull the water condensation through the hose, it cannot be too long, or the water may collect inside the hose or return to the unit. This is standard for most gravity drain dehumidifiers. Therefore, if the hose is longer than about 1 meter, it must be positioned vertically downward below the height of the dehumidifier. You can also buy the Honeywell TP70PWK with Built-in Drain Pump, which would allow for another 5 meters as the pump helps to push the water out.