Tom blok Photo collection by Th.Schiöler Spiral scoops, screws and the chain pump Spiral scoops Photo 144
Spiral scoops
Gul streg
Photo 511 x 506 pixels, 43,6 K
 
Scoop wheel in Egypt
Most scoop wheels in the Delta lift the water less than one metre, in which case
an immense amount of water can be raised. Sometimes too much, implying that the farmer over-irrigates his crop and spoils it.
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