Table 5-2. - Minimum Size Fixture Supply

As per the National Standard Plumbing Code, table 5-2 shows the minimum supply pipe diameters.

ROUGH-IN MEASUREMENTS

Figures 5-1 through 5-6 show single-line drawings of general rough-in measurements for various fixtures. The figures show general measurements and will vary depending on type of fixture and manufacturer. It is your responsibility to identify the fixtures you will be using, so you can obtain the proper rough-in measurements.

Service connections for steam radiators depend upon the sizes to be installed and location of each. The same holds true for water tanks used for storing or heating.

After roughing-in, you can easily install the plumbing fixtures and trim work. Instructions are given here for the installation of various fixtures and accessories. We cannot include every type of fixture you will install; but if you learn to install the fixtures covered in figures 5-1 through 5-6, you should not have any problems with other types.

WATER CLOSETS

Water closets come in various shapes, designs, and colors. The device is designed to receive human waste and dispose of the waste properly in a sanitary sewer system. Most water closets mount on the floor, but there are models that are wall hung. Modem water closets have various design features which create different flushing actions. To read more on the various designs and flushing action principles, see the publication titled Plumbing Installation and Design by L. V. Ripka.

Installation

To install a water closet (fig. 5-7), follow these procedures as a general guide.

1. Slip the water closet flange over the closet bend and slide it down until it is level with the finish floor.

2. Prepare the joint for a lead-caulked joint; pour and caulk the water closet flange to the closet bend.

3. With hammer and cold chisel, break off the portion of the closet bend that projects above the water closet flange. Do not break the closet bend below the flange.

Figure 5-1. - Tank-type water closet.