When the problem occurs clean from rust or scale, of small-diameter pipes, the question naturally arises — how can this be done? We advise you to make a simple centrifugal purifier. Device it is. The two flanges are tightened by four threaded studs. On each is placed a few gears — holes in them is significantly larger than the diameters of studs. That’s the whole design. Fixture screws onto the steel rod, inserted into a pneumatic or electric drill, and an air purifier is introduced into the rusty pipe. A few minutes — brown colouring of its internal parts is replaced by a metallic luster.
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