The Bridgeport evening farmer., 1917-04-11

and IS, and will permit the tunnel to be divided into two parts and drained in sections without going entirely out of commission. Next to each section valve on either side are bronze reduc- ing pipes which are connected to steel castings embedded in the concrete tunnel lining. Each valve is opera ted by a hydraulic cylinder in the shaft chamber.
 Many methods of purifying the wa ter and keeping it pure were studied in this country and abroad. Reliance is placed in two aeratiOn pants. They make in efefct a beautiful park of spouting fountains. At the Ashokan and also at the Kensico reservoir an aerator capable of treating all the wa ter which will flow in the aqueduct is ready. These aerators are substan- tially alike-great fountain basins, approximately 500 feet long byi25O feet wide. each containing about 1 500 nozzles through which jest of water are thrown high into the air. The nozzles are so designed that the water is divided into fine spray, thus per- hitting thorough admixture of oxygen and removal of undesirable gases and
 
 odors The, jets have been arranged for decorative display. The fountains will be we'll worth visiting when in operation and permits for chalets, pa vilions and motor inns are being sought.
 Provision for Altering plant was made by the acquisition of 315 acres of land near Tarrytown, about two miles below the Kensico reservoir. Here connection chamber was built in the aqueduct, so that water can be diverted to, and received back from the filter plant. Pending the comple- tion of the filters small coagulating plant is being completed over the aqueduct about two miles above Ken sicS to aid in removing turbidity from the water whenever that turbidity rises above a healthy limit
 To measure the water drawn from the reservoirs, the aqueduct is fitted with the largest meters ever built. Ther is one just below the Ashokan reservoir, second just above the Kensico reservoir, and a third where the, water is drawn from Kensico to- ward Manhattan. Each of these me- ters is 40 feet long. Each is of rein- forced concrete, excepting for the bronze, throat castings and the piezo- meter ring, also of cast bronze. In ad- dition to these tremendous meters, five gazing chambers have been set in at various points along the aqueduct where the flow of water can be meas ured by means of current meters In the "city tunnep' (that within city limits) is a Venturi meter which will measure all the Catskil1 water sup piled to the city. Provision has also been made in the city tunnel for the installation of Venturi meter upon each connection between the tunnel and the distribution pipes in the streets.
 Formal celebration of the inaugu- ration of this greatest of all water works is to take place in June or in September. So far as time will enable the committee to do so, the festivities are to approach in splendor the Hud- son-Fulton celebration. For perman- ent memorial of the end of the work three interesting suggestions are be- ing entertained: CD 9 huge fountain downtown to be continuously spout ing; CD a great ornamental water gate at the Battery; (3) further elab- oration of the fountain park plan at the most southern .aeration basin.
 After spending $177,000,000 and, miraculous to relate, keeping within the, estimates, the taxpayers of New York city would scarcely hesitate at a more millions for dedicatory beauty.