This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
In taking off plumbing the contractor should begin at the sewer or cesspool, if the drains are included, or, if not, at the outer end of the soil pipe, and take off carefully every pipe with its fittings, which should be itemized carefully as this data will be useful in getting at the amount of caulking, fitting, etc.
List prices of pipe and fittings can be obtained from the dealers, which are subject to discount; these vary from time to time, but the present discounts will be found to bring the prices of the more common materials about as follows:
4-in. extra heavy soil pipe per ft.
3-in. extra heavy soil pipe per ft.
2-in. extra heavy soil pipe per ft.
For fittings add 35 per cent to the cost of pipe 4-in. running trap
4-in. brass ferrule cleanout
4-in. lead bend
4-in. brass ferrule
2-in. brass ferrule
Solder per lb.
40 gal. galvanized boiler and stand
1-in. brass pipe per ft.
1-in. galvanized pipe per ft.
3/4-in. galvanized pipe per ft.
1/2-in. galvanized pipe per ft.
1-in. stop and waste cock
3/4-in. stop and waste cock
1/2-in. stop and waste cock
For fittings, add 30 per cent to cost of pipes.
1 cu. ft.
1 cu. ft.
1 cu. ft, 62.321 lbs.
1 cu. yd.
1 gal., 231 cu. in.
8 1/3 lbs.
Pressure per sq. in. = depth in feet x 433.
Each 27.72 inches of depth gives a pressure of 1 lb.
to a square inch. A barrel 31 1/2 gal.
Contents in cu. ft. x 2375 = barrels. Head of water = pressure in lbs, per sq. in. x 2.31. Number of gallons in a foot of pipe = Diam. in.
inches 2 x .04. Supply for one person is 15 gallons a day. Actual use 6 gallons to 12 gallons. Water 34 feet high has a pressure of 15 lbs. per sq.
in. equal to atmosphere.