Work out water demand for township instantly with clear inputs, formula shown and shareable results.
Township water demand starts from litres per capita per day, typically 135 for a piped supply with sewerage, then adds non domestic demand for institutions, commerce and firefighting, and finally an allowance for unaccounted for water. Distribution mains are sized on the peak hour flow, usually 2.25 to 2.5 times the average.
Total demand
MLD = population x lpcd / 10^6 x (1 + non domestic) x (1 + losses)
Peak flow
Peak hour flow = average x peak factor, typically 2.5
Preliminary estimate only. Water supply design must follow the applicable manual on water supply and treatment and a proper demand assessment.
MLD = population x lpcd / 10^6 x (1 + non domestic) x (1 + losses). Township water demand starts from litres per capita per day, typically 135 for a piped supply with sewerage, then adds non domestic demand for institutions, commerce and firefighting, and finally an allowance for unaccounted for water.
Because no network is watertight and no metering is complete. Well run utilities achieve ten to fifteen percent; many exceed thirty, and design must reflect the achievable figure rather than the aspiration.
This calculator takes 4 inputs: Design population, Domestic demand per capita per day, Non domestic demand, Unaccounted for water. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.