4x Block = 4800 Liter. 1x Block = 1200 Liter. Grobsand - kf = 1 x 10 -3 - 812 Liter. Feinsand - kf = 1 x 10 -5 - 3.338 Liter. Schluffsand - kf = 1 x 10 -6 - 5.504 Liter. 2x Block = 2400 Liter. 3x Block = 3600 Liter.
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