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
OPENING — SAVE
Offer a design key for removing lids from cans nakatannyh. Device instantly reveals not only the Bank, but also keeps intact the lid and the rubber grommet. At the same time (most...
CUTS FRICTION
Many probably had to watch as the metal is heated during processing it on an emery wheel. The phenomenon is harmful: heating "releases" hardened metal. Is it possible to turn it to their...
