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

  • CAR ON TWO WHEELSCAR ON TWO WHEELS
    Motorbike and car - the cars are different. First and foremost, by the level of comfort. Is it possible to combine the advantages of two-wheeled transport with the convenience of the...
  • RADIO MICRADIO MIC
    We are talking about miniature and low-power VHF transmitter that operates at a distance of only a few tens of meters. The contractor, using a wireless microphone, can move freely around...