Water Notes From Philadelphia.

Water Notes From Philadelphia.

On February 20 filtered water for the whole of the city of Philadelphia became an accomplished fact. As the pressure in the mains has been greatly increased, the mud deposits in the pipes left by the raw water was so greatly disturbed, and as the reservoirs, also, must be allowed to get rid of all their raw water before they can he filled with Torresdale filtered water, it was recommended to boil the water for some days, especially in the Queen Lane district. The reservoirs in the city have an aggregate storagecapacity of 1,609,457,000 gal. In the Queen Lane subsidiary basins there are stored 883,000,000 gal., which arc being drawn for the use of that district. The Queen Lane pumps are now shut down, and no raw water is being pumped directly into the mains.

由于压力大大增加,由于the distribution of filtered water in the mains of the city, there were several breaks in the mains, which had to be repaired at once. At Broad and McKean streets the pressure on February 26 was 45 lb. to the sq. in.—nearly twice the pressure of the raw water service. An increase in the pressure at Ninth and Germantown avenues from 35 to 75 lb. was probably the cause of the break that occurred at that point, and similar changed conditions were the cause of breaks in other sections which had occurred. Such breaks, however, had been expected. They numbered only five in all; the rest of the mains and the service-pipes having stood the test. Everything else has worked smoothly, and the new Oakland reservoir has been opened to deliver filtered water at high altitudes.