FIELD: water purification. SUBSTANCE: water purification filter has base carrying fluid-permeable vessels and granulated filtering material positioned between them, filtrate withdrawal pipe connected to central section of base and having funnel with repelling cap. The base also carries detachable cover in the form of vessel having permeable walls between which located are: granulated filtering material and distributor made in the form of circular tube with holes facing upward and shut off by valves which are in the form of flexible lugs. EFFECT: enhanced filtering reliability. 3 dwg
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Authors
Dates
1994-01-30—Published
1992-06-26—Filed