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Plumbing for Kitchens & Baths

Plumbing for Kitchens & Baths. Supply System Drain Waste and Vent. Supply System. Water Meter Housing. Water Meter. supply. Water enters the house in ¾” to 1” pipe Pressure Reduction Valve 80psi coming in Reduce to 25 -30psi. Pressure Reduction Valve. Hot Water Heater Supply.

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Plumbing for Kitchens & Baths

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  1. Plumbing for Kitchens & Baths Supply System Drain Waste and Vent

  2. Supply System

  3. Water Meter Housing

  4. Water Meter

  5. supply • Water enters the house in ¾” to 1” pipe • Pressure Reduction Valve • 80psi coming in • Reduce to 25 -30psi

  6. Pressure Reduction Valve

  7. Hot Water Heater Supply Hot Water Heater- • gas

  8. Hot Water Heater Supply • Electrical • Water heating can account for 14%–25% of the energy consumed in your home

  9. Water heaters with higher energy factors cost less to run. Use this factor to compare the operation cost of various water heaters.

  10. Web Resources www.energytrust.org/residential/index.html www.earthadvantage.org/

  11. Tankless Versus Conventional

  12. Tankless Hot Water Heaters

  13. Hot Water Heater Supply

  14. Heat Pump Water Heater Supply

  15. How hot is Hot? • Cold to Cool – 60° to 98.6° • Comfort Level – 98.6° - 105° (6.4° Range) • Uncomfortable – 105° - 115° • Dangerous – 116° and higher

  16. Controlling Hot • Pressure Balanced Fittings/ Temperature Limiting

  17. Controlling Hot • Thermostatic Fittings

  18. Supply Materials

  19. Copper K L M Grades

  20. M Grade – thinnest grade used inside the home • L Grade – thicker pipe used for service • K Grade – thickest pipe used between water main and meter

  21. Galvanized

  22. Dielectric Union

  23. Dielectric Union

  24. CPVC (chlorinated polyvinyl chloride) supply

  25. PVC Cold Water Only • Schedule 40 120psi Type 1, Grade 1 (White) • Schedule 80 200psi Type 1, Grade 1 (Gray) • Schedule 120 High Pressure and Corrosion Resistant

  26. PEX PolyethyleneCross-link

  27. Traditional Water – Piping System

  28. Manifold Distribution System

  29. Floor Joist Modifications Notching Floor Joists, Rafters & Beams • Depth of notch not to exceed 1/6 depth of member • Width of notch not to exceed 1/3 depth of member • Notches not permitted in the center third of member • Notches at end not to exceed ¼ depth of member

  30. Supply • If supplying water to 1-2 fixtures, use ½” water lines (A ¾” tub filler could be and exception.) • When supplying water to three or more fixtures or appliances use ¾” water line.

  31. Plumbing Codes • Shield Plates are required for all but cast iron pipe within 1 ½” from the nearest edge of the framing member. • Plates must be 1/16” thick and extend 2” above the sole plate and below the top plate. • Pipes passing through footings or concrete walls must be protected by a pipe sleeve.

  32. Plumbing Codes • Water drain and sewer pipes must be protected from freezing. At least 12” deep and at least 6” below the frost line. (Depends on county) • Testing of piping systems

  33. Supply System Stop 1/2” 3/8” ¾” ½”

  34. Bath Design Considerations • Try to hide the stops when planning pedestal lavs.

  35. Bath Design Considerations • Consider the finish when designing wall-hung or console lavatories

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