Hkoenig bw1880 Manual De Instrucciones página 26

REPLACE WATER INSIDE THE COOLING CAVITY
12.
It is recommended replacing the water inside the cavity once each week.
(No need to replace the water for each beer keg, one week one time
recommended)
Figure 28(Sketch map of drain construction)
1. Open the drain switch to drain out the water from the cavity into the
drip tray. Make sure the drip tray is fit into the notch to avoid water flow
to the desk; the drip tray can load 450ml water;
2. After all water drain out, close the drain switch and put 800ml fresh
water into the cavity.
3. Open the drain switch (drag the switch forward to 90 degree
angle), and drain out the water inside the cavity to drip tray, and
need twice to drain out the water..
Warning: 1）Clean water is necessary;
2) Make sure the drip tray is fit into the notch to avoid water
3) The drip tray can load 400-500ml water;
flow to the desk;