© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only Warm-up 4/6/15 What type of water do you have at your house? Objective: Students will be able to create a plumbing plan for dream house.

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 2 Water Supply System The supply pipe that enters the house is known as the building main.building main – City water or private source Water treatment devices may be necessary in the building main. –UV light, water softener Building main branches after treatment into the cold and hot water mains.

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 3 Water Supply System

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 4 Water Supply System The cold water main provides unheated water to the cold water branch lines.cold water main Cold water branch lines are connected to each fixture.Cold water branch lines Branch lines are smaller than mains. (continued)

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 5 Water Supply System The water heater is located in the hot water main. The hot water main supplies heated water to the hot water branch lines.hot water mainhot water branch lines The hot water branch lines are connected to each fixture that requires hot water. (continued)

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 6 Water Supply System The hot water main connects to the top of this electric water heater. (Marathon Water Heater Company) (continued)

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 7 Water Supply System Factors affecting the location of pipes: –Freezing in cold climates. –Pipe size: When a large pipe, such as a drain, must pass through a joist, the joist should be blocked to prevent severe weakening of the member. (continued)

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 8 Water Supply System Pipes used in the water supply system: –Threaded galvanized steel pipe. –Plastic pipe with cemented joints. –Copper tubing with soldered joints. –Pipes underground or in concrete must be special heavy-duty copper tubing with flare-type joints.. (continued)

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 9 Water Supply System This plumbing installation utilizes copper pipe and fittings for the water supply system and plastic pipe for the drain system. (continued)

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 10 Water Supply System Each main line, branch line, and fixture must have a shutoff valve. Efficiency may be improved if hot water lines are insulated. Cold water lines may be insulated to prevent excess condensation. Air compression chambers reduce pipe noise during use. (continued)

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 11 Water and Waste Removal Fixtures are connected to the stack using a branch main. branch main All stacks extend into basement or crawl space and empty into the house drain.house drain –All houses must have at least one house drain, but may have several. The house drain becomes the house sewer once it is outside the house.house sewer –The house sewer empties into the city sanitary sewer or private septic system.

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 12 Water and Waste Removal Gases from the system dissipate through the vent stack—12" above roof.vent stack –The vent stack provides an air inlet for the drainage system to operate properly A trap is installed below each fixture to prevent gases from entering the housetrap –The trap is always filled with water –Water closets have a built-in trap Each stack requires a cleanout at the base.cleanout

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 13

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only 14 Water and Waste Removal A water trap blocks the escape of gases from the drain system.

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only On your floorplan, Label where your hot water heater is going to go and where your building main is. Using two colors, create a plumbing plan like one found in notes for your house. 15