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79
Eight cylindrical filters each eight feet in diameter;
Two aerators;
Three air compressors, and
Chlorine gas units.
Cleaning is carried out by the method of mechanical agitation.
Sulphate of alumina is used as a coagulant and the chlorine content
of the swimming bath water is maintained in accordance with the
recommendations contained in the report of 1929 of the Ministry of
Health, tests of the water being made daily and recorded.
There is also an open-air swimming pool on London Fields
under the control of the London County Council.
Rats and Mice Destruction Act, 1919.
The number of complaints received during the year of premises
being infested with rats was 428. These complaints were effectually
dealt with in most cases by the repair or reconstruction of defective
sewers, drains and sanitary fittings, under the supervision of the
Sanitary Inspectors.
In 8 cases it was necessary to serve notices under the Act upon
the occupiers of the land or premises.
Seven thousand, four hundred and thirty-seven poison baits and
45 varnish traps were provided and laid down at 372 premises under
the supervision of the Sanitary Inspectors. By these means 362
premises have been cleared of rats and 10 premises were under
observation and treatment at the end of the year.
Rent and Mortgage Interest (Restrictions) Acts, 1920-1933.
The number of certificates granted to tenants under the Rent and
Mortgage Interest (Restrictions) Acts during the year was two. In
one case the work specified in the certificate was carried out, and
in the second case the premises were demolished.
Housing (Consolidated) Regulations, 1925 and 1932.
House-to-House Inspection.—1The number of houses inspected
and recorded under these Regulations during the year was 834
and in 2(35 instances nuisances were discovered requiring the service
of notices under the Public Health (London) Act.