To visitors of my home page:

I strongly recommend you to visit the page “Invader’s from the sea” This film illustrate the problem ballast water can cause to the invirement.
CEOBAS 3D tank test
This test was done by Bergen Høyskole and carried out in November 2017. You’ll find a short video of the test. The test came out very positive from a Ceobas point of view, and indicate a 2-3 increase of speed during a ballasted trip with all the tunnels in an open position.
On the last page you will find a link to all the IMO publication regarding ballast water that are issued.
Med vennlig hilsen
Magne Rødland