FIELD: filtering equipment. SUBSTANCE: method comprises steps of extracting filtering member, regenerating open-porosity tube by removing from its inner surface already used or damaged preliminarily swollen membrane; applying onto inner surface of regenerated tube new membrane and assembling filter. Novelty is removal of already used or damaged preliminarily swollen membrane from inner surface of open porosity tube by means of circular cutter secured to end of mandrel. Diameter of cutting edge of knife consists 0.9984-0.9993 of inner diameter of open-porosity tube of membrane filter. EFFECT: enhanced efficiency of method. 1 tbl, 7 ex
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