1. Design concepts

2. Basic principles

3. Sanitary drainage

4. Stormwater drainage

5. Important issues

[Powerpoint file in PDF format]

• How Do P-Traps Work? | Spec. Sense (2:23) https://youtu.be/zGofkKOP2SU

• Video: DRAINAGE Title 01 (28:55) https://youtu.be/BrBqoTutZfI
• The evolution history in the UK
  
• Current practices:
  
• Problems of siphonage and the use of traps
  
• Two pipe and single stack systems
  
• Combined and separate drainage systems
  
• Modern pipework and fittings
  
• Trenches and pipe protection
  
• Inspection chambers
  
• Building regulations
  
• Modern sewage treatment plant
• Inspection of sanitary drainage system
• Students are suggested to do an inspection of the sanitary drainage system at your residence or other suitable places to enhance your understanding on design and maintenance of such a system in practical situations. The following information will be helpful for the learning process.
  
• Typical sanitary drainage system in bathroom in Hong Kong http://ibse.hk/IBTM6010H/HK-drainage.pdf
  
• Defective Drainage - Buildings Department https://www.bd.gov.hk/en/safety-inspection/building-safety/index_bsi_drainage.html
  
• Healthy Drains - Buildings Department https://www.bd.gov.hk/en/resources/codes-and-references/epidemic-prevention-information/index-drainage-systems.html
  
• What you need to know about drainage pipe maintenance https://www.bd.gov.hk/doc/en/resources/pamphlets-and-videos/DrainagePipeMaintenance.pdf
  
• Guidelines on Maintenance and Repair of Drainage System and Sanitary Fitments https://www.bd.gov.hk/doc/en/resources/codes-and-references/code-and-design-manuals/Drainage-System-Guideline-Eng.PDF
  

• Burberry, P., 1997. Environment and Services, 8th ed., Chps. 10 & 12, Addison Wesley Longman, Essex. [HKALL][696 B94]
• Chadderton, D. V., 2007. Building Services Engineering, 5th ed., Chps. 7-9, E & FN Spon, London & New York. [HKALL][696 C43]
  
• CIBSE, 2004. Public Health Engineering, CIBSE Guide G, Chps. 3 & 10, Chartered Institution of Building Services Engineers (CIBSE), London. [HKALL][LB 628 P97][ebook via Knovel]
• Clifton L., 2020. Methods of Venting Plumbing Fixtures and Traps in the 2021 IPC, International Code Council (ICC), Washington, DC. https://www.iccsafe.org/wp-content/uploads/20-18927_GR_2021_Plumbing_Venting_Brochure.pdf
  
• DSD, 2018. Stormwater Drainage Manual: Planning, Design and Management, 5th ed., Drainage Services Department (DSD), Hong Kong. https://www.dsd.gov.hk/EN/Files/Technical_Manual/technical_manuals/Stormwater_Drainage_Manual_Eurocodes.pdf
  
• Hall F. & Greeno R., 2017. Building Services Handbook, 9th ed., Chps. 8 & 9, Routledge, Oxon & New York. [HKALL]
• IOP, 2002. Plumbing Engineering Services Design Guide, [New ed.], Institute of Plumbing (IOP), Hornchurch, Essex, UK. [HKALL][LB 696.1 P73] http://docshare04.docshare.tips/files/24329/243291973.pdf

• Practical examples of sanitary fitments or appliances:
  
• http://www.americanstandard-us.com
  
• http://www.thebluebook.co.uk
  
• http://www.totousa.com
  
• Cap. 123I Building (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulations https://www.elegislation.gov.hk/hk/cap123I
  
• Practice Notes for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers (PNAP) https://www.bd.gov.hk/en/resources/codes-and-references/practice-notes-and-circular-letters/index_pnap.html
  
• ADV-28 Provision of Sanitary Fitments in Offices, Shopping Arcades, Department Stores, Places of Public Entertainment, Cinemas and Other Public Places (Nov 2012) https://www.bd.gov.hk/doc/en/resources/codes-and-references/practice-notes-and-circular-letters/pnap/ADV/ADV028.pdf
  
• APP-93 Planning and Design of Drainage Works (May 2014) https://www.bd.gov.hk/doc/en/resources/codes-and-references/practice-notes-and-circular-letters/pnap/APP/APP093.pdf
  
• Grease Traps for Restaurants and Food Processors https://www.epd.gov.hk/epd/english/environmentinhk/water/guide_ref/guide_wpc_gt.html