All main pumps delivering filtered water to. consumers are steam driven and, with one exception, are double acting plunger pumps." The two original pumps, which will be replaced by a new pump in 1027, awe capacities of 78,000 and 120, [000 gallons. per. hour respectively, but are no longer sufficiently econ: clinical to justify. their retention.
1919 the largest set at present running, with a enpacity of 360,000] allens an hour, was installed; this followed in 1921 by two pumps, tone, a three stage centrifugal direct fecupled to a high speed compound Vertical engine. running, at 300] Hpam., with a capacity of 00,000] Fallons an hour, and the other an! American built. pump. with a capacity also of 300,000 gallons an hour; in this set the Aywheel is placed between the steam and water fends, an arrangement which con-Sidetably economises floor space.
'A. new. engine ik now evected; this is a triple exper ith a capacity of 600,000 gallons an hour, the leading dimension Compared. with the previously largest sct (No. 6) are as follows:— and Revalstions' per aioute' Pumps 204 in diag 20% Cafacity 600,000" galle/ be. stents pee. H. P, hour 13.26 Ibs Steam pressure at boilers 180 The /sq, Ta.f 100 Toa /aa, me 'AMI main boilers are Lancashire] type, those. in the new boilerhouse Doing equipped. with Underfeed stokers and hi reed, draught the same engine driving the stok gear and the fan. An economise Ess been installed in' this house raising the temperature of feed] water from 100° to 250° Fahr. All boilers are fitted with superheaters, three of these boilers are fitted ith oil. burning apparatus which however, is not normally used. In the old boiler house it is proposed Guring the ensuing year, to raise the steam pressure to 100 Ibs. per Square inch and to instal an_ air preheater, economise or possibly Eirbine furnaces; this work will be done at the same time as a new main pumping engine replacing the two original pumps is - being installed.
Text read from the printed page and cleaned; old type leaves the occasional error.