The Cleveland System.
As showing the efficacy of the saystem adopted in Cleveland O., of pumping water from the fire boat through a permanent water main. Chief Dickinson showed a representative of FIRE AND WATER the following reports of the engineer and assistant chief who made the tests. Water was pumped through a sixinch main to a special patent hydrant 1000 feet from the fire boat, and at other distances without showing any perceptible difference in the force of the stream or pressure on the gauge. The placing of an electric wire from the hydrant to the fire boat, so that instantaneous communication could be had between the pipe man and the engineer, is a very commendable feature. The tests have been made frequently since the first reports were submitted, both in actual fire service and by experiments, and the results have been uniformly satisfactory. Several of these permanent pipe connections have been laid at different points accessible to the fire boat, which in the case of a city like Cleveland, where large conflagrations have to be fought with powerful streams, will be very beneficial.
William Long, engineer, says in his report: “In working through a pipe on Seneca street hill, I was instructed to carry a pressure as follows : When I got ioo pounds to blow whistle, 140 pounds and 160 pounds likewise. I did so only once while starting second pair of pumps. She ran up to 180 pounds before I got her regulated. I knew it was perfectly safe to carry 200 pounds under the circumstances we worked on pipe.”
H.’W. Rebbeck, first assistant chief, reports as follows : A test was made on the six-inch pipe laid up Seneca street hill, from the river to Champlain street, which is 1000 feet in length and ninety feet above the water in the river. There were three two-way hydrants connected on the pipe with three and one-half-inch openings; one at Canal, one at Michigan and one at Champlain streets. The boat was connected to the pipe at the river end with~three lines of three and one-half-inch hose, and she ran her pumps at a maximum water pressure of 160 pounds. A gauge was attached to the hydrant at Champlain street, the highest point, and showed the following pressure :
First test, one line of hose, fifty feet, at Canal street, twoinch nozzle :