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39.
SWIMMING BATH - CLISSOLD ROAD
The Council operates a large modern covered swimming bath, opened in
April 1930, size 100 feet by 33 feet, with the depth varying from 3 feet
to 8 feet 6 inches, which is available for mixed bathing all-the-year
round. It may be hired for galas, etc.j special arrangements are made
for swimming clubs and classes of schoolchildren, from local schools,
attend for instructional purposes during school terms.
Diving facilities include 1, 2, 3 and 5-metre firm boards and 1-metre
springboard.
The Stoke Newington Swimming Club, many members of which have gained
International and National swimming honours, has its headquarters at the
bath.
Water is supplied to these premises from the Metropolitan Water
Boards this water is used for filling the swimming bath and for all other
purposes; The bath is emptied at regular periods, approx imately at
yearly intervals, and contains approximately 137,000 gallons which is
filtered, aerated and chlorinated continuously with a turn-over period of
approximately 3½ to 4 hours.
Co-agulation in the three 8'6" diameter pressure filters is achieved
by the use of aluminoferricj alkalinity of the water is maintained at
pH 7.8 with bi~carbonate alkalinity at over 200 p.p.m., whilst sterilisation
is maintained by means of breakpoint chlorination, the dosage regulated
to maintain not less than 0.5 p.p.m. free available chlorine at the
swimming bath outlet. A chlorine residual testing unit is attached to
the outlet from the swimming bath and this unit continuously tests the
outlet water and records those tests on a chart. In addition, colorometric
tests are taken daily to determine pH, bi-carbonate alkalinity,
free and total chlorine.