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Twickenham Open Air Pool 280,000 gallons
Hampton Open Air Pool 206,000 gallons
Teddington Open Air Pool 180,000 gallons
this water being supplied by the Metropolitan Water Board. The pools' water is
filtered through pressure sand filters and sterilized by chlorine gas treatment operating
on the "marginal" principle. The pool water at the Twickenham and Teddington
Pools is turned over once every 6½ hours, whilst that at the Hampton Pool operates on
a 4 hour turnover rate.
Colourmetric tests and water samples at each pool are taken three times daily to
determine free-available/residual chlorine content of the water, the pH values of the
same, and both shallow and deep end water temperatures. Each of the results obtained
are recorded in a standard log-book.
Bacteriological tests of the water at each of the above pools and including Richmond
Baths are made monthly and, during the past year 90 samples have been taken,
of which 81 were satisfactory and 5 of the remainder were only marginally below the
recommended standard. In each case repeat samples were satisfactory. (See page 60
— Water Supply).
Richmond Baths (Indoor and Open Air)
The Richmond Baths Establishment, of a "combination" nature, situated in the
Old Deer Park, Richmond, was opened to the public in August, 1966.
The establishment consists of one main Indoor Pool 110' x 42', water capacity of
210,000 gallons and a turnover rate of 3 hours; one Indoor Learner's pool 42' x 24',
water capacity of 17,000 gallons and a turnover rate of 1½ hours, and an, Open Air
pool 110' x 42', water capacity of 160,000 gallons and a turnover rate of 4 hours. The
filtration of all pools' water is through Pre-coat filters, and sterilization is carried out
by chlorine gas treatment on "breakpoint" principle. A system of pool water sampling
and testing is installed and all records are recorded automatically on graphs. A plenum
heating system is installed and the whole establishment is operated electrically utilising
"off-peak" electricity.
The private baths suite consists of 12 private baths for both ladies and gentlemen
respectively together with the necessary waiting rooms, toilets, etc.
The grounds are landscaped and well laid out and provide some two acres of grass
and banked areas which are available for sunbathing, games, etc."
14. FERTILISERS AND FEEDING STUFFS ACT, 1926
Nineteen samples of fertilisers were obtained during the year and submitted to the
Agricultural Analyst. Fifteen were satisfactory, but the following irregularities were
found in four of the samples:—
No. 1. (Dried blood). The statutory statement was not in the required form. The
vendor's attention was drawn to this and no further action was necessary.
No. 7. (Compound fertilisers). The percentage of phospheric acid insoluble in water
was 1.0 above the percentage stated in the statutory statement and the difference was
in excess of the limits of variation allowed. The vendor and the manufacturer were
informed but as the discrepancy was not to the prejudice of the purchaser, no further
action was necessary.
No. 10. (Dried blood). The percentage of nitrogen was 0.84 below the percentage
stated in the statutory statement and the difference was in excess of the limits of variation
allowed. Correspondence with the Ministry of Agriculture, Fisheries and Food
followed, and it was agreed that although the discrepancy was to the prejudice of the
purchaser, no further action was possible as the owner or seller would have a defence
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