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

  • CONTAINER VELOCIMETRYCONTAINER VELOCIMETRY
    Hobbyists and modelers know how hard it is without a special container to connect several dry cells "373" in the battery. Reliable and easy temporary container is obtained from the...
  • TO PLOW, MOW AND STACK CHANGETO PLOW, MOW AND STACK CHANGE
    In rural life, there are many laborious works, which nevertheless must be done quickly, such as a spring — sown, summer — haymaking, harvesting in autumn and finally the snow in winter...