The Golden State: Where & How to Live, Secure, Visit, Enjoy and Thrive in California

How To Design And Install Plumbing

Installation of the Gas Pipe. The first pipe to be strapped to the ceiling joist is a piece of 3/4" black, 6, 8' 2" long from center of a 3/4" elbow to center of a 3/4" x 1/2" tee. The elbow is fitted with 1' of 3/4" pipe, a, to which the gas meter can eventually be attached. A piece of }/<£ pipe 1' 11/2", c from end to center is now run to the gas heater and then a 1/2" drop, d, 7' long from end to center of a 1/2" elbow is installed. The gas heater is connected to the elbow with nipples and a gas cock and ground joint union.

The main is now extended with 3/4" pipe, e, 10 1/2" long from end to center of a 3/4" elbow to a point where its direction changes. The branch to the kitchen stove is the next to be provided. This is done by screwing a piece of 3/4" pipe, /, 12' l01/2" long from end to center of a 3/4" x 1/2" x 3/4" tee. The branch is continued to a point below the first floor partition with a 3/4" pipe, g, 1' 6" from end to center of a 3/4" elbow and then rises in the partition with a piece of 3/4" pipe, h, 2' 51/4" from end to center of a 3/4" elbow. The elbow is extended through the plastered wall with a nipple which can eventually be removed when the gas stove may be connected. As a general rule this connection is made by someone other than the plumber.

The main is now extended to the east wall of the laundry with a piece of 1/2" pipe, i, 12' long from end to center of a 1/2" elbow and the run is completed with a 1/2" drop, j, 6' 1/2" from end to center of a 1/2" elbow sealed with a nipple and cap for future use.

The gas pipe may now be tested with water under city pressure and if no leaks occur, the run of pipe is ready for use.

The gas service from the street is usually constructed by the gas company and is not under the jurisdiction of the plumber. The plumber's work begins at the house meter and consists of the pipe within the building.

Finishing. The term finishing is one applied to the setting of the plumbing fixtures. This must be done after the rooms in which they are to be installed have been decorated and are ready for occupancy. The bathtub because it is built in is the only exception to this rule. It must be set just before the plasterer or tile-setter is ready to apply the first coat of material to the rough wall.