[Report of the Medical Officer of Health for Poplar, Metropolitan Borough].

  • Poplar (London, England). Metropolitan Borough.
Date:
[1915]
Catalogue details

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: [Report of the Medical Officer of Health for Poplar, Metropolitan Borough]. Source: Wellcome Collection.

    143/324 (page 129)
    129 Spraying and Cleansing Floors of London County Council Schools with Electrolytic Disinfecting Fluid. A total 1,224 gallons were supplied to four London County Council Public Elementary Schools for spraying and cleansing floors of class rooms. Swimming Baths, the use therein of the Electrolytic Fluid. The fluid continues to be added to the water in the swimming baths in the same quantity and strength as mentioned in the Annual Report for the year 1909, viz., 1 part of Chlorine to 2,000,000 parts of water. 9,340 gallons were supplied to the Poplar Baths, 9,043 gallons to the Bow Baths and 2,800 gallons to the Island Baths, making a total of 21,183 gallons. The Baths Superintendents repeat their statements that the addition of the fluid prevents the formation of slime in the water, the slime is not found at the bottom of the baths when they are emptied, and there is no offensive smell when the baths are being cleansed. It should be said that the electrolytic fluid in the Poplar Baths is not used with the idea of rendering unnecessary periodic changes of the pond water, but to keep the water in the pond fresh and free from harmful organisms all the time it is in use. The class of persons who use the swimming ponds in Poplar is always likely to contain uncleanly or infected individuals, and it is to guard against danger from the latter that the fluid finds its chief application. At Poplar the electrolytic fluid costs in its preparation about £2 per 1,000 gallons, or a little less than ½d. per gallon. Thirty gallons are added to a swimming pond of 85,000 gallons capacity on first filling, and subsequent additions are made as required, at intervals of two or three days. Comments on Adverse Criticisms respecting the process. See annual report, 1911. At Poplar, the hypochlorite of magnesia solution is prepared by the electrolysis of Water Board water, containing certain definite pro portions of sodium chloride and magnesium chloride.