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
FORMWORK — STRUBTSINKU
When the need arises to make a concrete column or some other vertical structural element, for fastening the boards of a timbering used a variety of means at hand: wire, nails, all kinds...
DRILLS ENLARGER…
At the present time become unneeded enlargers: not only because of the high cost and scarcity of photographic materials, but also wide distribution of "phocomelic" and laboratories for...