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House Drainage System

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House Drainage System

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it is a brief introductory part of what is house drainage system , its components with their classification , types of system of plumbing aided with principles of drainage design.

it is a brief introductory part of what is house drainage system , its components with their classification , types of system of plumbing aided with principles of drainage design.

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House Drainage System

  1. 1. Semester : 5th Civil-A Subject : Code : 2150603 Presentation On : Prepared by : Eddy Ankit Gangani eddygangani@gmail.com
  2. 2.  Introduction  Basic Terminology  Principles of House Drainage System  Components of House Drainage System - Pipes - Traps - Sanitary Fittings  System Of Plumbing  House Drainage Plan
  3. 3.  What is House + Drainage + System ? Why House Drainage System is used ?  What are the Components of House Drainage System ?
  4. 4.  Wastewater  Sewage  Sewage System  Plumbing System  Sullage  Sewer  Soil Pipe  Waste Pipe  Vent Pipe  Manhole  Traps
  5. 5.  Lay sewers by the side of building  Properly ventilated  Enough number of traps  Watertight joints  Proper gradient  Flow under Gravity  Easy cleaning , repair & maintenance  Straight drains  Rain water pipe  Anti siphonage pipe
  6. 6. Components of house drainage system TrapsPipes Sanitary fittings According to Use P – Trap Q – Trap S - Trap Floor Trap Gully Trap Grease Trap Intercepting Trap According to shape
  7. 7. Sanitary fittings Pipes Traps Components of house drainage system Washbasin Sink Bathtub WC Urinal Flushing Cistern Soil Pipe Vent Pipe Waste Pipe Rain Pipe Antisiphonage Pipe
  8. 8. Types of traps according to shape
  9. 9. (1) Floor Trap To admit sullage from floors , bathroom , kitchen etc. Material : Cast iron , stainless steel, galvanized gratings No blockage, starting point of waste water flow. A.K.A. “Nahni Trap”
  10. 10. (2) Gully Trap Provided at junction of a roof drain & other drain from kitchen or bath. A gully trap is usually made of stoneware and a C.I. grating is provided at its top. a water seal of 50 to 75 mm
  11. 11. (3) Intercepting Trap Provided at junction of a house sewer & municipal sewer or septic tank Provided in the last manhole of the house drainage system To prevent entry of foul gases in the public sewer to house drainage. A.K.A. disconnecting trap or Interceptor trap
  12. 12.  Advantages & disadvantages Intercepting Trap  Restricts entry of foul gases of public sewer line.  Harmful pathogens are not entered in house drains. Make access for the cleaning and removal of the debris and garbage Retentions of heavy particles causes decomposition & foul gases are produced Cleaning is difficult Interceptor may be an obstruction If lead or plug is not tightened the foul gases from public sewer will enter the house drain
  13. 13. (4) Grease Trap Used where large quantity of oily waste is generated To prevent ugly scum & blockages to re-aeration. It’s a masonry or cast iron chamber with a bent pipe or Tee –pipe at the outlet end
  14. 14.  Waste Pipe : Pipe carrying sullage  Soil Pipe : Pipe carrying sewage  Vent pipe : Pipe installed for the purpose of ventilation or to carry foul smell  Rain Water Pipe : Pipe carrying rain water  Antisiphonage Pipe : Maintains proper ventilation and does not allow the siphonic action to take place Types of Pipes
  15. 15. Components of Sanitary fittings (1) Wash Basin Used for washing hands,brush Materials : Porcelain, : Stainless steel, : Plastic Angle Back Pattern Size 600*480mm 400*400mm Flat Back Pattern Size 630*450mm 550*400mm 450*300mm
  16. 16. Components of Sanitary fittings (2) Sinks Normally rectangular basin used in kitchen or laboratory for cleaning utensils and glasswares. Made of glazed earthware, stainless steel or enameled pressed steel.
  17. 17. Components of Sanitary fittings (3) Bathtubs For long and luxurious bath Made of iron or steel coated with enamel,enameled porcelain or of plastic It is provided with outlets and outflow pipes,usually 40mm diameter.  Conventional sizes of bathtub: – Length 1.7 to 1.85 m – Width 0.7 to 0.75 m - Depth 0.6m
  18. 18. Components of Sanitary fittings (4) Water Closets designed to receive human excreta directly and convey to the septic tank or underground sewer through a trap Indian Type Europian Type Anglo-Indian Type
  19. 19. Components of Sanitary fittings – W.C. (1) Indian Type W.C. – Simple in construction – Used in squatting (siting) position. – Made of porcelain – The pan and trap are available as two separate pieces – Closet is setup at the floor level and pair of foot rests are provided on both side of the pan. – The length of pan varies from 450mm to 675 mm and water seal varies from 50mm to 75mm
  20. 20. Components of Sanitary fittings – W.C. (2) Europian Type W.C. – Usually made of porcelain – Pan has a flushing rim to spread the flush water – The closet is either fitted with P or S trap. – Can also be used at upper floors, while in case of Indian type W.C. the upper floor has to be depressed to receive the pan fixed at floor level. – The length of pan varies from 500 to 600mm and depth varies from 350mm to 400mm
  21. 21. Components of Sanitary fittings – W.C. (3) Anglo-Indian Type W.C. – Main advantage of Indian W.C. is that it can be used in squatting position since it is fixed at floor level. – While in European W.C. which is fixed at about 400mm above floor level can not be conveniently used in squatting position. – Here closet is fixed 400mm above the floor level. – The top flushing rim and seat etc. are similar to European type.
  22. 22. Components of Sanitary fittings (4) Urinals Bowl Type Urinals Stall Type Urinals Angle Back Pattern 340*430*265 Flat Back Pattern 430*260*350mm
  23. 23.  The contents of urinals are collected and discharged in to the soil pipe through floor trap (nahni trap).  Automatic flushing cistern are generally provided for stall type urinals which operates at regular interval of 10 to 15 minutes.  • A stall type urinal normally has more than one units, with a centre to centre spacing of 0.6 to 0.7m.  • IS 2556 part 6-1992 describes the detailed specifications for the various vitreous urinals
  24. 24. Components of Sanitary fittings Urinals Flushing Cistern Valve less siphonic type (Bell type cistern) Valve fitted siphonic type (A float type)
  25. 25. • Single stack system • One pipe system • Partially ventilated single stack system • Two pipe system
  26. 26.  Single stack system
  27. 27. • One pipe system
  28. 28. • Partially ventilated single stack system
  29. 29. • Two pipe system.

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