- Materials, Etc. All cold-water pipes and fittings are to be galvanized iron; and all hot-water and circulating pipes are to be iron-size brass, semi-annealed, with all fittings of brass.

Where exposed, brass or nickel-plated pipes are to be supported by brass or nickel-plated hangers.

All exposed supply pipes in bathroom and toilet rooms, to be nickel-plated brass, semi-annealed; in kitchen, polished brass.

All risers to have stop and waste, roundway same size as pipe, in accessible position in cellar, properly tagged.

All supply pipes and branches, to have proper pitch so that they may be readily emptied at their lowest point; and each branch supply of fixtures, to have compression stops, with stuffing-box close to cocks.

Make connection with water main in street by 3/4-inch, 4-pound lead pipe; and carry same into building. Just inside wall, place a 3/4-inch "Simplex" stop, with 3/4-inch stuffing-box hose bib on house side. From stopcock, carry galvanized pipe along on basement ceiling, and take branches to supply various fixtures, as may be necessary.

From 3/4-inch main, take branches as follows:

For risers......................................

3/4 inch.

For sill-cocks...............................

3/4 inch.

For tank in attic...............................

3/4 inch.

Supplies to fixtures will be:

To lavatory and water-closet tanks.....................

1/2 inch.

To baths, sinks, and washtrys.......................................

3/4 inch.

From tank in attic to hot-water boiler...................

3/4 inch.

In attic, where directed by Architect, line a 4 by 4 by 2-inch tank with 14-ounce tinned copper, fitted with 3/4-inch high-pressure ball-cock and proper valves. Overflow to run to roof or to laundry traps in basement, as may be directed by the Architect.

Set, where directed by Architect, two 3/4-inch nickel-plated wheel-handle sill-cocks, with stuffing-box. Inside of wall, place a 3/4-inch "Simplex" stop and waste.

Hot-Water System

Connect hot-water boiler with tank by 3/4-inch pipe. Carry 3/4-inch brass pipe from boiler, with branches as specified to supply the various fixtures, and 1/2-inch brass return to boiler. The entire system to circulate freely and thoroughly.

From highest point of system, carry 1/2-inch expansion pipe to tank, discharging over top of same. Place stop-cocks on supply to boiler and from same.