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189
Also it was ascertained that the old de-oiling and water softening apparatus was
unable to cope with the increased load, with the result that oil found its way into the
boilers in such quantities as might cause damage. It was therefore decided to instal
a new independent de-oiling apparatus and to modernise the existing water softening
plant by the addition of new chemical mixing apparatus. The estimated cost of
these works is £1,100.
The Channelsea River, a tributary of the River Lee, flows along the eastern
side of Abbey Mills pumping station and the adjoining land which is also the
Council's property. The river bank is known as the Long Wall. The condition of the
wall has rendered repairs urgently necessary, and these have been undertaken at a
cost of £1,038.
The brickwork of the boilers at Deptford pumping station has been repaired
at a cost of £255.
The cost of overhauling the engines at the station for the year ended 31st
December, 1927, amounted to about £430.
A defective nest of tubes in the fuel economiser is being renewed at a cost of about
£490.
The pump chamber at Heathwall pumping-station disclosed the percolation of
water and the walls of the chamber have been treated in order to prevent such
percolation at a cost of £190.
In order to ensure a sufficient and continuous supply of cooling water at Shad
Thames pumping station, it has been necessary to instal a duplicate system for the
purpose, and this has been carried out at a cost of £156.
Owing to the development of defects in a cylinder of one of the old engines (No. 3)
at the station, the cylinder is being renewed at a cost of about £320.
From time to time subsidences have occurred in roadways on the sites of shafts
sunk in connection with the construction of the Southern outfall sewer No. 2 and the
Southern high-level sewer No. 2, due to the consolidation of the material used for
filling in the excavations. Further subsidences occurred during the year in Prioloroad
and Kinveachy-gardens, Greenwich, and Clarendon-road, Lewisham, and
they have been made good at a cost of £250.
An order has been made by the Council under the provisions of section 137 of
the Metropolis Management Act, 1855, vesting in the Council the new sewer constructed
on behalf of the Lambeth and Wandsworth Metropolitan Borough Councils
in Brixton-hill and Streatham-hill, and the local sewer in Water-lane, Brixton,
between the new sewer and the Council's EfEra sewer.
The construction of the underground station and passages and new escalators
at Piccadilly-circus necessitated a diversion of the Council's main sewer in Shaftesbury
avenue which resulted in the discontinuance of the sewer as a main sewer for a length
of about 230 feet. A short length of the sewer (about 26 feet) was required for the
drainage from certain gullies and a house drain, and this length will be maintained
bv the Westminster Citv Council as a local sewer.
Deptford
pumping
station.
Heathwall
pumping
station.
Shad Thames
pumping
station.
Outfall,
intercepting
and main
sewers.

15435
N