Description

Parameter

Population (number of consumers)

200; 500 and 1000

Water consumption per person (litres/16hr)

150

Chlorine residual (mg/l)

1.0

Pipe wall decay coefficient (kw/hr)

0.05

Total organic carbon in water (mg/l)

1.8

Main type

SDR11 MDPE

Water temperature (˚C)

5 & 15

Main length (m)

2000; 4000; 6000, 8000 and 10,000

Main diameter (mm)

125

(Trunk Mains 1 - 30)

180

(Trunk Mains 31 - 60)