2.  Determine the waterline components needed to complete the water supply for the bathroom shown in figures 13-6 and 13-7

7.  Starting with the hot water line: Approximately 10 feet of ½-inch pipe and 3 feet of ¾- inch pipe are needed.  Beginning with the left side of the bathroom, the following fittings will be needed:  One ¾” x ½” x ½” tee  Three ½” tees  Four ½” x 6” stub out fittings (one at each lavatory)  One ½” 90-degree elbow (near the air chamber)  One ½” x 12” air chamber

8.  The cold water line servicing the lavatories will require the same components as the hot water line.  The cold water line servicing the water closets and urinals will require:  Approximately 20 feet of 1-inch pipe 7 feet of ¾-inch pipe.  Three ½-inch risers are needed for the water closets (allow 18 inches each)  Two ½-inch risers are needed for the urinals (allow 30 inches) for a total of 9.5 feet of ½- inch pipe.

9. Beginning in the lower left corner, the following fittings will be needed:  One 1” x ¾” x 1” tee  One 1” 90-degree elbow  Two 1” x 1” x ½” tees  One 1” x ¾” x ½” tee  Two ¾” x ¾” x ½” tees  One ¾” x ½” 90-degree elbow (near the air chamber)  One ½” x 12” air chamber  Five ½” x ½” 90-degree elbows (one per riser)  Five ½” x 6” stub out fittings (one at each fixture).

13.  Determine the DWV components needed to complete the DWV system for the bathroom shown in figures 13-8 and 13-9. The horizontal waste piping is 2 feet below the finished floor, the horizontal vent piping is 9 feet above the finished floor, and the vent terminates 14 feet above the finished floor.

16.  The DWV piping will be taken off in three steps: the main(horizontal) waste, the vertical waste servicing the fixtures, and the vent.  Beginning with the cleanout near the lavatories, the lengths of the pipe and fittings needed for the main waste line servicing the lavatories are as follows:  4 feet of 2-inch pipe run vertically,  5 feet of 2-inch pipe run horizontally,  15 feet of 3-inch pipe, one 2” cleanout plug,  one 2” cleanout adapter,  two 2” 90-degree elbows,  one 2” sanitary tee,  one 3” x 2” x 2” sanitary tee,  two 3” x 3” x 2” sanitary tees,  one 3” 45-degree sanitary elbow,  one 3” x 4” busing and  one 4” sanitary wye.

17.  Beginning with the cleanout near the urinals, the lengths of pipe and fittings needed for the main waste line servicing the water closets and urinals are as follows:  4 feet of 2-inch pipe run vertically  5 feet of 2-inch pipe run horizontally  6 feet of 3-inch pipe  6 feet of 2-inch pipe (for the floor drain)  12 feet of 4-inch pipe  one 2” cleanout plug  one 2” cleanout adapter  two 2” 90-degree elbows  one 2” sanitary tee  one 3” x 2” x 2” sanitary tee  one 3” sanitary tee  one 3” x 3” x 2” sanitary tee  one 4” x 3” x 3” sanitary tee  one 4” x 4” x 3” sanitary tee  one 3” 45-degree sanitary elbow  A floor drain is also needed.

18.  Each of the lavatory risers will require:  4 feet of 2-inch pipe  one 2” sanitary tee  one 6 inch long piece of 2-inch pipe  one male adapter  The riser for each water closet requires:  1 foot of 3-inch pipe  one 3” x 2” x 3” sanitary tee  two feet of 3-inch pipe  3” 90-degree elbow servicing the water closet  one 3” toilet flange.  The riser for each urinal will require:  * 5 feet of 2-inch pipe  * one 2” sanitary tee  * six inches of 2-inch pipe.

19.  For the vertical venting pipe:  Four 7-foot-long 2-inch pipes (lavatories)  Two 8-foot-long 2-inch pipe (urinals)  Four 10-foot-long 2-inch pipes (water closets and floor drain) will be needed.  For the vertical vent pipe:  Thirty-four feet of 2-inch pipe  Six feet of 3” pipe ill be needed for the vertical vent stack through the roof.  The following fittings are needed for the vent pipe:  Four 2: 90-degree elbows  Eight 2” tees  One 3” tee  Two 3” x 2” bushings.  Additionally:  Nine 2” test caps  Four 3” test caps (water closets and roof vent)  One 3” thermoplastic roof flashing  Two decorative cleanout covers will be needed.