The pump is 100% safe for fish, works well, lasts a long time, needs little maintenance, and can’t let debris in.
The fish-friendly Archimedes’ screw pump from FishFlow Innovations is a very good pump for moving water. Not only does it save a lot of energy compared to other pumps, but it also saves the lives of many fish that migrate through the pump. Migrating fish can, in fact, use the water that has been moved to get out of the polder. However, about 15% of all fish that use this route to get out of the polder are hurt in some way by a conventional screw pump. The screw pump made by FishFlow Innovations is made in a way that does not hurt fish. The blades don’t go all the way to the end of the screw. Instead, during the last few turns, the width of the blades gets narrower from the middle outward. The second change is to the screw’s housing, which is now wrapped in a pipe that is attached to the screw and rotates with it. This also keeps water from leaking out. Because of these changes, the screw pump became a place where fish could move downstream.
Positive facts about Fish-friendly Archimedean Screw Pump
0% water losses
80 – 100% hydraulic efficiency
80 years life time expectancy
100% fish friendly
At least 30% energy savings, compared to conventional pumps
95% Recyclable
80% reduction on maintenance costs
Installed in 1 day
At least 30% energy savings, compared to conventional pumps
Video about Fish-friendly Archimedean Screw Pump
https://www.youtube.com/embed/n0YZpIhX5ck
Fish-friendly Archimedean Screw Pump website : https://fishflowinnovations.nl/en/innovations/screwpump/
