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

  • CAP-UNIVERSALCAP-UNIVERSAL
    Burned out incandescent lamps, unfortunately, not to recover but to use their metal caps is possible. To separate them from glass bulbs, the bulb wrapped in a thick cloth and crushed....
  • CANDLESTICK-IMPROMPTUCANDLESTICK-IMPROMPTU
    Camping or at the cottage is easy to make in just a minute original and comfortable, and most importantly—reliable in terms of universal fire candlestick. This will require a tin can and...