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1. DRAINS AND SEWER
WATER SUPPLY AND SANITARY
ENGINEERING
Prepaid by ;- slider

2. CLASSIFICATION OF DRAINS
1. Based on the shapes of drains
2. Based on c/s and Discharge carrying capacity
l Rectangler drains
l Semi circular drains
l Vee shaped drains
l U shaped drains

4. CLASSIFICATION OF SEWER
BASED ON MATERIALS
1. Asbestos cement pipes
2. C.I. Pipes
3. RCC Pipes
4. Plastic Pipes
5. Steel Pipes

6. CHARACTERISTICS OF
SEWER MATERIALS
 Durability
 Imperviousness
 Resistance to abrasion
 Strength
 Weight

7. CLASSIFICATION OF SEWER
BASED ON FUNCTION
 Main sewer
 Branch sewer
 Lateral sewer
 Sanitary sewer
 Separate sewer
 House sewer

8. MAIN SEWER
BRANCH SEWER

9. FACTOR AFFECTING SEWER
SECTION
 Efficiency of flow
 Structural stability
 Cost
 Ease in maintenance and operation
 Resistance to corrosion

10. SEWER JOINTS

11. TYPES OF SEWER JOINTS
1. Bandage joints
2. Spigot and socket joints
3. Collar joints
4. Flush joints