RHELGAN · DEMAND & STORAGE PLANNER
Turn your own demand assumptions into an early storage requirement.
The planner deliberately does not impose a default litres-per-person allowance. Enter the value adopted for the actual programme, add any fixed institutional demand, then test the storage autonomy and reserve you want to review.
Planning inputs
Use the project’s own assumptions.
For schools, healthcare, WASH, kitchens, commercial activity or emergency response, a simple per-person allowance may not capture all demand. Add known fixed daily demand or use a separate engineering demand schedule.
People + allowance
Additional demand + resilience
Planning result
Enter demand and autonomy to calculate storage.
This is a gross planning calculation from the inputs above. It does not account for source refill during the autonomy period, unusable volume, fire reserve, treatment buffer, tank compartmentation, operating level, seasonal source behaviour or destination-specific requirements unless you include them in the inputs.
People-based demand
0.00 m³/day from the entered population and allowance.
Total daily demand
0.00 m³/day including the entered fixed daily demand.
Base autonomy storage
0.00 m³ before the entered planning reserve.
Planning class
Complete the inputs to route the result.
Before procurement
Convert the volume into an actual water-system brief.
Check the source
Confirm source yield, seasonal reliability and the refill rate available during normal operation.
Separate raw + clean storage
Treatment systems may need buffering on one or both sides of the process.
Review usable volume
Operating levels, dead volume, freeboard and project-specific reserves can change the nominal tank requirement.
Check the footprint
Tank geometry, height, foundation and access can change the practical configuration.
Model peak flow
Storage volume does not select booster pumps or distribution pipework.
Confirm the operating plan
Maintenance downtime, cleaning, source interruptions and future growth can justify additional resilience.
RHELGAN · EARLY WATER PLANNING