The elementary filters made in houses
For work the ordinary soap tray, a piece of a glass tube with a diameter approximately 10 millimeters, a filtering material on volume of a soap tray and a piece of a separator grid from the fulfilled accumulator, preliminary processed by boiled water and washed up in a soap solution is required.
I have made the filter of a plastic box from a processed cheese and two glass трубок different diameter. A thin tube has bent and has inserted in thick. If in a thin tube to pump up air together with air from a thick tube water from an aquarium will act also. The water-lift has inserted into an aperture in day of a box, and on both parties has made two more apertures. On a bottom has put a layer of cotton wool which I change once a month.
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