Furnish and fit up, alongside of the suction tank, one size 3-A Quimby screw pump having a capacity of 1,800 gallons of water per hour against a head of 100 feet. The pump shall be direct-connected to a 3 horsepower direct-current motor of the General-Electric, Crocker-Wheeler or Sprague type, and shall be provided with an automatic switch and starting device to turn on the current when water in the house tank reaches a certain level and stop the motor when the tank is full. Provide a brick or concrete foundation for the pump 2 feet 6 inches wide by 5 feet 6 inches long, capped with a flagstone of granite or bluestone, with bolts set in to secure the pump. The pump shall be set on a matting of felt to deaden any sound due to vibration. Connect the suction end of the pump to the outlet of the suction tank with a 24-inch galvanized wrought pipe, and extend a 2 1/2-inch galvanized wrought pipe from the pump to the house tank on roof.
The owner shall provide a chimney flue lined with flue lining which shall be cylindrical in form and 10 inches in diameter. If the linings are square in section, they shall measure 10 inches on the inside.
The entire water-supply system throughout the building shall be subjected to a hydraulic pressure of 100 pounds to the square inch, at which pressure the pipe fittings and joints must be perfectly tight.
Each estimator shall include in his tender a schedule of prices for labor, for various sizes of soil pipe, waste pipe, water pipe, cocks, valves and for other materials. Also a schedule of prices for the various fixtures and trimmings specified, that he will furnish the goods for in case extra fixtures are required, or that will be deducted from the cost of the contract in case any fixtures or materials are omitted. It is understood however that in case the extra work, or the reduction of work exceeds five per cent. of the amount of the contract, the prices stated may be superseded by a special written agreement stating the work to be performed and the prices to be paid therefore. Should the owner and contractor fail to agree as to the amount to be added to or deducted from the contract for changes from the original plans and specifications, a written agreement will be entered into as required, but without the amount to be added to, or deducted from, the contract being stated; and if the owner and contractor continue to disagree, the matter in dispute shall be decided by arbitration, as provided for in the following section.
In case the owner and contractor fail to agree as to the price to be paid for changes to or alterations from the plans and specifications, or a dispute should arise as to any other terms of the specifications and contract, the matter shall be referred to a Board of Arbitration consisting of three persons. One of the board shall be selected by the owner, one by the contractor, and the two so chosen shall select the third. The decision of any two of the board shall be final and binding on both parties, and each party, the owner and the contractor, shall pay one-half the costs of the arbitration trial.
The owner during the progress of the work shall keep it insured against loss or damage by fire so as to cover all work installed in the building or materials stored on the premises; and the policy shall be made payable to the plumbing contractor, proportionately with the other contractors, as the interests might appear.