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
CHAIN NET? NO PROBLEM!
I have been subscribing to the magazine "Modelist-Constructor" for a long time, almost since its very beginning; I have gained a lot of useful knowledge from it. Responding to your call...
TEPLIČKA OF TIRES…
Original miniature greenhouse you get when you use discarded car tires and plastic bottles. Last filled with water, with salt and are placed inside the tires. The sun, they accumulate...
