Step by Step Design & Calculation of Plumbing system-Part2/2

Sanitary Drainage Systems: Design, Calculation & Ventilation

Section – 01 Introduction to Sanitary Drainage Systems

Explore the fundamentals of building sanitation with a comprehensive introduction to sanitary drainage systems. This section covers essential aspects of sanitary drainage pipework, including various drainage system types. Learn about single stack systems, one-pipe systems, and two-pipe systems, understanding their advantages and applications. Master the mathematical principles of pipe slope and its crucial role in efficient drainage. Discover the importance of selecting the correct pipe slope for optimal performance.

Section – 02 Design & Calculations of Sanitary Pipes

Gain practical skills in sanitary pipe design and calculations. This section provides a step-by-step approach to sizing horizontal sanitary branches, sanitary stacks, and the overall building drain. Learn the necessary calculations to ensure proper drainage capacity and prevent blockages.

Section – 03 Traps & Interceptors: Preventing Sewer Gas & Grease Buildup

Understand the vital role of traps in preventing noxious sewer gases from entering buildings. This section details different trap types, including floor traps (Nahani traps), gully traps, intercepting traps (P-traps, Q-traps, S-traps), and their specific applications. Furthermore, learn about interceptors and their importance in managing grease, oil, and sand. We cover the requirements and sizing of grease interceptors, oil interceptors, and sand interceptors for effective waste management.

Section – 04 Design & Calculation of Storm Water Drainage Systems

Master the design of effective storm water drainage systems. This section covers stormwater collection methods and sources, including calculating catchment area for both flat and sloped surfaces. Understand the significance of the runoff coefficient and the impact of rainfall intensity. Learn about roof gutters and downspouts, primary and secondary roof drains, and a detailed 4-step process for roof gutter and downspout design. Explore various stormwater discharge methods and the principles of rainwater harvesting.

Section – 05 Design & Calculation of Ventilation Systems in Drainage Systems

Ensure optimal drainage performance with effective ventilation systems. This section delves into the importance of ventilation in drainage systems and explores various trap design considerations. Learn about different ventilation methods, including stack ventilation, trap ventilation (individual, unit, circuit, and wet vents), and the design of vent stacks, unit vents, individual vents, and circuit vents. Gain an introduction to active drainage ventilation systems and understand the working principles of Positive Air Pressure Attenuators (P.A.P.A.) and Air Admittance Valves (AAV). Special design guidelines for high-rise buildings are also included.

Section – 06 Design & Calculation of Basement Drainage Systems

Address the unique drainage challenges of basements with this section. Learn about basement drainage system design considerations, including sump pit design. Explore different types of basement drainage pumps, such as sump pumps and ejector pumps, and their respective design and calculation methods. Understand the design of wet pits or sumps with both pump types.

Section – 07 Design & Calculation of Building External Drainage Systems

Design efficient external drainage systems for buildings. This section covers understanding invert levels, calculating invert levels for straight and sloped pipes, and the principles of external foul drainage systems. Learn about manholes/inspection chambers, their types, and optimal locations. Finally, follow a 5-step process to design building external drainage systems.