If, 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
HOW TO EXTEND THE LIFE OF THE BULB?
If you are tired to constantly change the bulb, use one of the tips below. But in all cases success is achieved through a substantial reduction in voltage. In the daytime and especially...
ON THE INSTRUCTIONS OF NATO
Fighter-bomber FIAT G. 91. In February 1952, at the ninth session of the Atlantic Council in Lisbon, the decision was made for the NATO standard combat aircraft is a light fighter-bomber...