Flocking agents serve to maintain the clarity of the water. After disinfection, a flocculant is added that combines the particles floating in the water into larger particles. They then easily settle on the sand bed in the filter. Metals in the water and tiny pathogens can be removed with the help of flocking agents.
Briefly increase the pH value, add flocculant and use filters to separate the contaminants from the water. After this operation, the filter should be cleaned and the appropriate pH value of the water should be restored. It is worth installing a dosing pump that will constantly dispense the flocking agent in an appropriately set amount.