THE BALL INDICATOR

BALL INDICATORIf, during the filling of high capacity water (e.g. drums) intended for watering the garden, throwing a rubber ball of small size, its appearance over the edge of prompts to close the valve. Thereby eliminating the need for constant monitoring of the level of a cursory glance.

 

N. SVIRIDENKO, p. Pervomayskiy, Kazakhstan

Recommend to read

  • LATEST CRUISER TANKSLATEST CRUISER TANKS
    In the period from 1937 to 1945 in service with the British army consisted of only four types of infantry tanks. Changing models of military vehicles cruising type resembled a...
  • BICYCLE TRAILER? TANDEM!BICYCLE TRAILER? TANDEM!
    Many outdoor enthusiasts prefer cycling trips to other forms of short travel, such as hiking or driving. Walking allows you to fully enjoy the beauty of nature and take in the...