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Individual
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Individual
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Priority to ES1967127754UpriorityCriticalpatent/ES127754Y/en
Publication of ES127754UpublicationCriticalpatent/ES127754U/en
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Publication of ES127754YpublicationCriticalpatent/ES127754Y/en
Improved septic tank, characterized by comprising the pit or pit itself divided into three compartments in the first of which is made by shaking the faecal water passing the second by a prefiltration grid where they are sieved taking place in turn passing through a siphon located in the upper part or lower elbow, to the third department in which a filtering material consisting of slag, or other non-disintegrating filtering material with the passage of water and with a single granulometry leaving the lower or upper part, has been arranged respectively through a containment grid of the filter material to the absorption tube by a tubular conduit or, if appropriate, to the absorption box by a tubular conduit provided with filtering material and with a dry rasilla cover depending on the case. (Machine-translation by Google Translate, not legally binding)