=Method of Erecting.=--Adoption of this system where brine circulation is used can be made for meat storage rooms. (See Fig. 26 for detail of the end pipes with fittings for the hose connections.) Pipes are usually furnished in ten-foot lengths, riveted and soldered, and are slipped together like ordinary stovepipe joint, all of these slip joints being carefully soldered to be brine tight, a sufficient number joined together to make runs of the required length to suit the pipe chamber. At the end of the runs one of the three hose connection fittings shown in Fig. 26 (feed connection, intermediate connection and return connection) is put on for the purpose of connecting the runs together by means of the rubber hose. Chatterton’s compound is put on the nipple of the fitting connection quite warm, the hose being slipped over at once and a wire clamp then put around the hose very tightly, when the connection is complete. [Illustration: FIG. 26.--DETAIL OF END PIPES, SHOWING DIFFERENT FITTINGS.] =Life of Pipe.=--This pipe is recommended for the following reasons: First, for its economy; second, for its lasting qualities. As proven by experience, galvanized pipe will last fully twice as long as the ordinary black iron pipe. This would hardly seem possible when first considered by anyone not having had the experience, and would naturally seem contrary to his judgment. There was installed in 1890 over 100,000 lineal feet of this light galvanized pipe in a Chicago plant, some of which is still in use. Samples of the galvanized pipe that had been in use for upward of ten years were found to have a very slight coating or deposit of rust on the inside of the pipe, less than one-thirty-second of an inch thick, and adhering very tightly to the surface. By removing this rust with a sharp instrument it was found that the galvanizing was as clear and bright as when originally put on. [Illustration: FIG. 27.--SIMPLE METHOD OF SUPPORTING BRINE PIPES.] =Cellar Ceiling Suspension.=--In Fig. 27 is shown a very simple, inexpensive and effective method of supporting brine pipes in cold storage rooms, or in rooms used as curing cellars, etc. This arranges a combination whereby a drip pan can be suspended for catching the drip, the construction being illustrated. It is preferable to line the pans with galvanized iron so as to preclude possibilities of leakage. The wooden construction of the ordinary class is usual. =Ratio of Piping.=--Regarding the quantity of pipe required, this in a measure depends upon the insulation of the cellars and the temperature of brine circulated. With brine at a temperature of 10° F., one lineal foot of pipe will supply radiation sufficient for twenty cubic feet of cellar. [Illustration: FIG. 28.--GARDNER’S “CURTAIN” SYSTEM FOR BRINE CIRCULATION AS INSTALLED IN A CHICAGO PACKING HOUSE.] =Length of Coil.=--The inlet and outlet pipe should have a 1¹⁄₄-inch connection, this being ample for a coil about four hundred feet in length.