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The number of applications for removal, received during the year,
amounted to 377 or an average of 7.25 per week. The complaints
numbered 114 or an average of 2.1 per week.
Sewer Flushing.—The system of flushing the sewers within
the District has been continued during the year with satisfactory results.
The Council have, during the year, doubled the flushing in the
Harringay District, adopting a fortnightly flush instead of monthly.
The quantity of water used for the purpose amounted to
18,765,000 gallons, against 19,866,000 gallons in 1896. This difference
is due to the improved method of flushing referred to last year,
the result being greater efficiency with a less expenditure of water.
Ventilation of Sewers.—Careful attention has been given to
the ventilation of the Sewers.
On all the new Estates laid out provision has been made for the
erection of vertical shafts at the highest points of the Sewers, and these
will be erected up the flanks of houses or in other suitable positions
as the houses are erected. Permission has also been obtained for
erecting these upcast shafts in various other parts of the District, and
in many cases where this has been done the open manhole covers at
the road level have been closed with good results.
The total number of these cast iron shafts erected during 1897
was 16.
Gullies.—A number of stoneware pot Gullies with proper water
seals have been substituted for old and defective brick gullies wherever
the latter have been found to be a nuisance and the traps inefficient.

The length of new Sewers laid in 1896 was 2,557 yards. A
considerable length of Sewers were re-constructed, particulars of which
are as follows;—