Maria Hebert and Andreas Almqvist are two of the practitioners in Dalarna who are often out with their magnetic ropes with different weights and sizes and clean the watercourses from debris, but the dividend is not always known how it will be.

- It is very different depending on where you are, but if you stay around bridges and streams where it is easily accessible, the risk is quite high that people throw in things, and it is still relatively often that you get things that can be used, tells Maria Hebert.

Iron pipes, cables and nails. See when the practitioners made an impact at Faluån and their result from the magnetic fishing in the clip above.