Water storage sizing
Daily demand plus a split buffer — clean-water days (if the plant / feed fails) and raw-water days (if the source fails). Risk-profile presets suggest a split; edit either day-count to match this site.
Daily potable demand18,900 L/day= 18.9 m³/day(full-time 18,200 + part-time 700 L/day)
Combined buffer3 days= 1.5 clean + 1.5 raw
Daily demand
18,900L / day
= 18.9 kL·18.9 m³
Full-time 18,200 + part-time 700 L/day
Clean water reserve
28,350L
= 28.4 kL·28.4 m³
1.5 days of treated water held at the tap if the plant / feed stops.
Supply status
Plant undersized
Plant capacity 10,000 L/day is below daily demand of 18,900 L/day. Storage cannot compensate for an undersized plant — resize the treatment train.
Tank sizing
Clean water tank
28,350L
= 28.4 kL·28.4 m³
Daily demand × 1.5 clean days — treated water at the tap.
Raw water tank
28,350L
= 28.4 kL·28.4 m³
Daily demand × 1.5 raw days — raw water to keep the plant fed if the source stops.
Total site storage56,700 L= 56.7 kL · 3 combined days
Storage specification
A luxury 5★ lodge / villa with 40 full-time and 20 part-time persons at 70 % occupancy needs 18,900 L/day. Specify 28.4 kL of clean water storage (1.5-day buffer if the plant / feed fails) and 28.4 kL of raw water storage (1.5-day buffer if the source fails). Total site storage: 56.7 kL. Raw source at 15,000 L/day is below demand — steady-state clean production is capped at the source rate; the raw buffer covers short source interruptions only. Plant capacity 10,000 L/day is below demand — resize the treatment train before finalising storage.
Plant capacity 10,000 L/day is below daily demand of 18,900 L/day. Storage cannot compensate for an undersized plant — resize the treatment train.