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WORK ON THE FARM

.. ATTEND TO OUT-BUILDINGS NOW. DUBABLE WHITEWASH. No. 1 (for sheds etc.)Carefully slack i bushel (381 b. of good quicklime; strain the paste, while still thick, through wire fly screen, and add it to a solution made by dissolving 151 b. of common salt in 7i gals, of water, mixing thoroughly. Thin with more water. No. 2 (for high grade work): —(a) Carefully slack i bushel (381 b. of good quicklime; strain the paste, while still thick, through wire fly screen, add about 4 gals, water, allow to cool. (b) Dissolve 31b. of borax (better, trisodium phosphate) in about 3 gals, of skimmed milk (better, in 1 gal. of water, which is aftewards added to 51b. of casein previosuly softened for 2 hours in 2 gals, of hot water), (c) Dissolve 3 pints of formaldehyde in about 3 gals. of water. When the paste (a) and the milk (or casein solution) (b) are thoroughly cool, slowly add the milk (or casein solution (b) to the lime (a> stirring constantly. Just before using slowly add the formaldehyde solution (c) to the batch, stirring constantly and vigorously. Add the formaldehyde too rapidly and you may cause the casein to jell, thus spoiling the mixture. Caution:—lf all of this mixture cannot be used in one day, use only half or a third, or other fractional part of each of the three parts (a), (b) and (c), and mix the rest as desired, since a fresh solution each day gives better results. In these directions, 1 rack (501 b of hydrated lime, which has been well protected from the air, can be used in place of freshly slacked lime. In No. 1 the hydrated lime can be added directly to the solution; in No. 2 it should be first made into a paste by mixing it thoroughly with about 7 gals, of water. No. 3 (Disinfectant Wash): —For a mild disinfectant or insecticidal whitewash add a quart of crude carbolic acid to the whitewash obtained by slacking J bushel (381 b. of quicklime, or by mixing a sack (501bs) of good hydrated lime with water. For strong germicidal whitewash, add 2 quarts of crude carbolic acid to the whitewash. No. 4 (Disinfectant whitewash, small quantity).—Dilute 11 quarts of commercial lime sulphur with about 3 gals, water and add 3 teaspoonsful of common salt, previously dissolved in 1 pint water. To this solution add. while stirring constantly, a lime cream made by mixing a heaping quart of good hydrated lime with water (or slacking about 211bs. of fresh quicklime and straining through wire fly screen.

General Suggestions:—ln using quick or burnt limestone care must be exercised in adding the water if good results are to be attained. Add the water a little at the time to the lime irt a clean, wooden pail, keg, or barrel. When slacking is well started add more water gradually to replace that lost in the slacking process. If not enough water is added the lime will become “scorched” and part of it will be granular. On the other hand, if too much water is added, at one time, it may retard or “quench” the slacking process. After the lime is conmpletely slaked add enough water to make a thick paste, cover the container and allow to stand for several hours, or overnight.

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Permanent link to this item

https://paperspast.natlib.govt.nz/newspapers/TAWC19360717.2.11

Bibliographic details

Te Awamutu Courier, Volume 53, Issue 3783, 17 July 1936, Page 3

Word Count
556

WORK ON THE FARM Te Awamutu Courier, Volume 53, Issue 3783, 17 July 1936, Page 3

WORK ON THE FARM Te Awamutu Courier, Volume 53, Issue 3783, 17 July 1936, Page 3