Jan, it does indeed scoop water. As per the real aircraft, there is a switch to lower/raise the probes (which you can see animated from the exterior too), and when you're in the water you have to be traveling at a steady rate for the water to be scooped up - around 50-70 kts seems to work well. To drop the water, you have to arm the system (arming switch), and there is also a rotary switch to control which tanks you want to release. When you're ready to release the water, then you simply push the release button on the yoke. Alternatively, there is also a large red emergency release lever which will also release all of the water out of the tanks. If you don't want to go through the process of scooping the water, you can also simply add it by adjusting the payload values.