Dissolved in water the salts deposited on the walls of the vessels for boiling in a permanent scale, which is difficult even mechanical cleaning. However, the scale is well softened and then deleted if the capacity to put potato peelings: after boiling the precipitated salt is easily scraped off with a wooden spatula.
Recommend to read
AND SAW, AND “OPENER”
Some time ago folding blades supplied by industry mainly for the army. Now widely available and are popular with motorists and hunters, geologists and fishermen, campers and even...
An-72
The aircraft short takeoff and landing An-72 was created to solve special military problems. To increase the lift coefficient of the wing engines located on its upper surface. However,...