Project Report on

Drainage System

At

Dezyne E’cole College,Ajmer

Submitted to :

Dezyne E’cole College Towards

The Partial fulfilment of the

Master’s of Science in

Interior Designing

By

Vartika Khandelwal

M.sc.I.D. 3rd Sem.

Subject :

Advance Building Services

DRAINAGE SYSTEM

INTRODUCTION : As explained earlier, potable water supplied to a buildings is

distributed to various areas like kitchen, bath, W.C. etc. through a network of pipes

provided with plumbing or sanitary fittings at their terminal ends. Adequate

arrangements are required to be made for quick collection, conveyance and disposal

of used water from the fittings without any risk to the health occupants. It is also

essential that the rain or storm water from the roof and paved areas of building and

the ground surface is suitably collected and discharged without flooding the area.

The Term Drainage or sewerage includes the system of removal of sullage or waste

water (from floor traps, kitchen, bath, and wash basin), soil water (from W.C. and

urinals) and storm water from a building and conveying the same upto its ultimate

point of treatment and disposal. The system of drainage can be broadly divided in

two parts.

Drainage System

Drainage below the Ground Drainage above the ground

Combined system Separate system

Partially combined system

Drainage System Below the Ground Drainage System Above the Ground

TYPES OF PIPES

The pipes used in Drainage system may be of cast iron, reinforced concrete, pre-stressed concrete, mild steel, wrought iron, asbestos, P.V.C.. or stone ware.

Minimum Size of pipes commonly used in house drainage are as under :

1. Underground Horizontal pipes laid to slope………………......100mm dia.

2. Vertical soil pipe (Above Ground)………………………………100mm dia.

3. Vertical waste pipe (Above Ground)……………………...50 to 75mm dia.

4. Branch soil pipe……………………………………………..60 to 75mm dia.

5. Vent pipe……………………………………………………………50mm dia.

6. Rain water pipe…………………………………………………….75mm dia.

7. Waste pipe from individual kitchen, sink, washbasins etc…….40mm dia.

Drainage System Below the Ground

Stoneware Pipes

Cement Concrete Pipe

C.I. Pipe

Drainage System Above the Ground

Cast Iron Pipes

Asbestos Cement Pipe

P.V.C. Pipes

TRAPS

TRAPS : A Trap is a fitting provided in a drainage system to prevent entry of

foul air of gases from the sewer or drain into the building. The barrier to the

passage of foul air is provided by the water seal in the trap. In its simples

form a trap is merely a double bend or loop in the sanitary fitting, the depth of

water seal being the distance between the top of the first bend and the bottom

of the second.

SHAPES OF TRAPS

P-Trap Q-Trap S-Trap

TYPES OF TRAPS

1. Floor Trap or Nahani Trap : Trap Provided in floors to collect used water

from floors of bathroom, kitchen or washing floor etc. are known as floor

trap.

Floor Trap

2. Gully Trap : Gully trap is a deep seal trap which is provided on the

external face of wall for disconnecting the waste water flowing from

kitchen, bath, wash basin & floors from the main drainage system. The

deep water seal forms a barrier for preventing the passage of foul air

from house drain to the inside of the building.

Gully Trap

Floor trap or

Nahani trap

Gully Trap Intercepting Trap Grease Trap Slit Trap

During My Residential project I supposed to give the Drainage system in the

house which was connected to the each floor of the house and at the same

time connected with the underground floor level for septic or sewerage water.

The Detail specification are as follows :

Main Water Supply Pipe

Distributer Water Pipe

Waste Water Pipe

Soil Waste Water Pipe