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

  • DON’T SPOIL THE VIEW OF THE BALCONYDON’T SPOIL THE VIEW OF THE BALCONY
    Quick-drying underwear on the balcony, loggia, but how ugly looks like a house from the street. Offering a simple design linen dryers with removable cords strained at the railing, and...
  • CRUISER UNDER THE “TRIDENT MISSILE”CRUISER UNDER THE “TRIDENT MISSILE”
    Unlike Britain, the United States emerged from the Second world war, not only without any significant losses in the cruising part, but, on the contrary, with a fair surplus. Despite the...