The Tornado AC115 is a PTO driven screw compressor. With this compressor it is possible to blow the hoses from the drag hose system empty. Because of the immense continual capacity no cleaning balls are used. When the hoses need to be very clean for e.g. long-term storage of the installation, using the PW120 a few cubic meters of water can be pumped into the hose. The compressor can then blow the slurry and water out of the hoses without problems after which they are completely clean.