[slief]

Originally Posted by autodave

I am confused about the nozzle. You said opening it (I'm assuming you mean turning it counter- clockwise) will decrease the flow of water. But on the instruction manual they say the opposite...
The water intake screw-on nozzle is designed to control the amount of water pumped into the mixing chamber. Turning the nozzle counter-clockwise will increase the water pumping capacity and screwing it clockwise will reduce the throughput (about 500 litres per turn).

The Nozzle when screwed all the way in (clockwise) will restrict the airflow. These pumps spin at one speed and don't know the difference between water and air. The less air it draws in, the more water it will pump into the skimmer. When you open the nozzle by turning it counter clockwise, it allows more air into the pump which reduces the water flow because air is displacing the water contrary to what the manual states. And contrary to what the manual states, start at 4.5 full turns out. I will have to have a discussion with the guys in Germany regarding the manual because it's counterintuitive and not really correct.