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Chapter 13 Plumbing

Chapter 13 Plumbing. CON 4003 Construction Estimating Prof R. V. Locurcio. Presentations. Today… CH 13 - Plumbing Thursday… HW#7 – Thomas Filipow Thursday… Brazil. What is Plumbing?. plumbing p lumb = lead = many original piping systems

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Chapter 13 Plumbing

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  1. Chapter 13Plumbing CON 4003 Construction Estimating Prof R. V. Locurcio

  2. Presentations • Today… CH 13 - Plumbing • Thursday… HW#7 – Thomas Filipow • Thursday… Brazil

  3. What is Plumbing? • plumbing • plumb = lead = many original piping systems lead also used in joining copper pipes • The system of pipes, tanks, fittings, and other apparatus required for the water supply, heating, and sanitation in a building.

  4. Most Common Materials • PVC (Water, Sewer and Vent) • Sanitary Mains are typically 4” in a home, and vary in size from 2”-3” • The main sanitary line will connect from the tap at the municipal main near the property boundary to the structure it serves • CPVC (Hot Water) • Copper Pipe (Potable Water) • Runs from the water meter at the property line to the structure it serves • Sizes usually range from ½” to 2” within a home

  5. PVC vs. CPVC • PVC stands for polyvinyl chloride. It has become a common replacement for metal piping. PVC’s strength, durability, easy installation, and low cost have made it one of the most widely used plastics in the world.ASTM standard allows PVC to be used in applications not exceeding 140 degrees F.Temperatures over this can cause softening of the material and weakening of joints. • CPVC is altered by a free radical chlorination reaction that effectively increases the chlorine content of the material. This difference in makeup allows CPVC to withstand a wider range of temperatures. This is why many building codes require the use of CPVC as opposed to PVC for use in hot water applications.CPVC can handle temperatures up to 200 degrees F.

  6. Copper vs. PVC Cost

  7. Fittings for Different Pipe Types

  8. Fittings - PVC Sewer Pipe

  9. Fittings for Copper Pipe

  10. PVC Plumbing

  11. Quick PVC “How To” Step 1: Cut the pipe to the length of your desires Step 2: Chamfer the inner and outer edges

  12. Step 3: Dry fit the pipe and make alignment marks Step 4: Apply purple primer, then cement to both contact surfaces Step 5: Join pipes together and align marks. The cement dries in about a minute. Voila!

  13. Copper Plumbing

  14. Quick Copper Plumbing “How To” Step 1: Cut the pipe Step 3: Clean the outside of pipe with sandpaper Step 2: Deburr the pipe Step 4: Clean the inside of pipe with brush

  15. Step 5: Apply solder flux. This helps draw in the solder after heat is applied Step 6: Apply heat to the joint opposite the side solder is applied. Once the joint is hot enough, solder will melt and be drawn into the joint. This takes about 15 seconds.

  16. Typical Bathroom Plumbing Sewer Vent Toilet Flange Lavatory Drain Pipe Hot water Cold Water Shutoff Valve

  17. Typical Bathroom Plumbing PVC Tee with Reducing Bushing 90° PVC Elbow Reducing Sanitary Tee Sanitary PVC Pipe Copper Pipe Copper Tee P Trap

  18. The P-Trap The P-trap provides a water “barrier” that allows fluid to pass through and then settles back to block sewer gas from reentering the room through the fixture inlet. The vent prevents the siphoning effect that would prevent the water from settling back into the P-trap zone. It must be placed before the top of the DWV Pipe falls below the elevation of the flow line of the pipe as it leaves the trap.

  19. EXAMPLE PROBLEM 1 Determine the water line components needed to complete the copper water supply for the bathroom shown in the figure to the left. Note: The book expects you to “approximate” the lengths. Most plans will have details that accurately describe the plumbing dimensions and required fixtures.

  20. Estimating Pipe Lengths

  21. Find the materials for the hot water line. 19 LF of ¾” pipe are required for the HOT water line. It tees off to supply hot water to FOUR (4) lavatories. Each tee needs ONE (1) 90 elbow and ONE ( ½ x 6) inch stub-out for a total of FOUR (4) each.

  22. Find the LF for the COLD water Line 8 LF of ¾ pipe expands to 3 LF of 1 inch pipe, which then expands to 1 ¼ inch pipe for the remaining 8 LF.

  23. Cold Pipe Materials for FOUR (4) Lavatories. 1 2 3 4 Going from right to left, THREE (3) ( ¾ x ¾ x ½ ) inch tees and 1 ( ¾ x 1 x ½ ) inch tee is needed. 1 2 3 4

  24. The remaining tees are counted in similar fashion. Going from left to right, THREE (1 ¼ x 1 ¼ x ½) inch tees, ONE (1 ¼ x 1 x ½ ) inch tee, and TWO ( 1 x 1 x ½ ) inch tees are needed. For each tee a 90° Elbow is required for the stubout for a total of SIX (6) tees and elbows.

  25. The water closets (toilets) require 18 inch risers, and the urinal requires a 30 inch riser (taken from the textbook). An air chamber is also required that is ½ “ x 12” and needs a reducing 90° Elbow (¾ x ½) inch.

  26. Drain Waste and Vent • Also called DWV system • Carries wastewater from building • Waste pipes carry water with solid waste • Drain pipes carry water without solid waste • Please don’t ask me what solid waste looks like • The vent keeps everything going downhill

  27. DWV Example Problem Determine the DWV components needed to complete the DWV system shown. The horizontal waste piping is 2 FT below the finished floor, the horizontal vent piping is 9 FT above the finished floor, and the vent terminates 14 FT above the finished floor. Its not rocket science but it’s a good idea to get to know the abbreviations used in the plan. FD = Floor Drain WC = Water Closet or Toilet L = Lavatory or Sink WCO = Wall Clean Out UR = Urinal

  28. DWV Example Problem Starting with the Cleanout (WCO) 4LF of 2” PIPE 8 LF of 2” PIPE 12 LF of 4” PIPE 1 2” Cleanout Adapter 1 2” Cleanout Plug 2 2” 90° Elbows 1 2” Sanitary Tee 1 4”x4”x2” Reducing Sanitary Tee 1 4”x2” Bushing 2 4”x4”x3” Reducing Sanitary Tees 1 4”x4”x2” Reducing Sanitary Tee 1 4”x4”x3” Reducing Sanitary Tee

  29. DWV Example Problem Then the Lavatory Risers 8 LF of 2” PIPE 2 Double 2” Sanitary Tees 4 6” long sections of 2” PIPE 4 Male Adapters

  30. DWV Example Problem Now the Water Closet & Urinal Risers 1 LF of 3” PIPE 1 3” Sanitary Tee 2 LF of 3” PIPE 1 3”x2” Bushing 3 LF of 2” Pipe 1 2” Sanitary Tee 1 6” Length of 2” Pipe 2 LF 3” Pipe 23” Double Sanitary Tees 2 3”x2” Bushing 8 LF 3” Pipe 4 3” 90° Elbows 4 3” Toilet Flanges

  31. DWV Example Problem Then the Floor Drains 1 LF of 2” PIPE 1 2” Double Sanitary Tee 8 LF of 2” PIPE 2 P-Traps 2 2” Floor Drains

  32. DWV Example Problem Finally the Vent Piping 21 LF of 2” PIPE 5 LF of 3” Pipe 30 LF of 2” PIPE 15 LF of 2” Pipe 2 2” 90° Elbows 4 2” Tees 1 3” Tee 2 3”x2” Bushings

  33. DWV Example Problem Then finish off with odds and ends 7 2” Test Caps 5 3” Test Caps 1 Thermoplastic Roof Flashing 1 Decorative Cleanout Cover

  34. The aftermath • Once you have completed the quantity takeoff you can then use simple math to add everything up and price the job accordingly.

  35. That’s all for today…

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