DFShou self-cleaning filtration system consists of several filter units, each unit with comprised grooved discs to remove particles with a size bigger than the required filtration grade. DFShou grooved discs combine on-surface filtration with in-depth filtration to achieve the maximum precision and safety in the filtration. The particles are rejected from the channel of the discs. Filtration system consists of a inlet pipe, a discharge pipe, a drain pipe, a pressure pipe, several filter units and an auxiliary filter unit.