Collect what reaches the tank.
Rainfall (mm) × roof area (m²) × efficiency = litres collected. One millimetre over one square metre equals one litre.
A LITTLE FORESIGHT. A LOT OF RAIN.
Every roof.
A new source.
Give the rain a place to begin. Your roof turns a passing shower into a useful reserve.
Map your catchment Rainwater capacity, considered.
PLUVAULT / WATER STUDIESEXHIBIT № 01
Catchment ↓
Reserve
→ Supply
↳ Overflow
↳ Overflow
01 / COLLECT THE FALLIllustrative art · not a measured system
THE RAIN WILL COME AND GO.
What stays is
up to you.
A bigger tank isn’t always a better plan.
Start with your roof, your rainfall, your routine.
01 / THE CAPACITY STUDIO
Let’s follow the water.
A daily balance for a thoughtful first estimate.
All volumes in litres. All scenarios stay on this device.
YOUR SYSTEM
Balanced sequence
One number per day, separated by commas or spaces. Up to 366 days. Presets are synthetic teaching examples, not recorded or live climate data.
YOUR 30-DAY OUTLOOK
EXAMPLE CLIMATE100%Demand supplied
8,498LOverflow
0daysDemand shortfall
Water held, day by day
Capacity 3,000 LDay 1Day 30
DAY 1 0 mm of rainfall · 500 L opening reserve
Collected0 L
→Closing reserve320 L
→Supplied180 LOverflow 0 L
Unmet 0 L
Unmet 0 L
02 / KEEP A FEW POSSIBILITIES
A little perspective.
Save the current setup. Change a condition.
See what the extra capacity really buys you.
0 / 6 saved locally
01 → 02
Your first comparison starts with one saved scenario.
Try the same rainfall with a 1,500 L and a 3,000 L tank.
03 / NOTHING HIDDEN BELOW THE SURFACE
A clear balance.
Every single day.
Pluvault is an early planning tool for non-potable water use. It describes a simplified daily balance, not a certified installation design or water-quality assessment.
Respect the room you have.
Opening reserve + inflow above tank capacity becomes overflow. The model fills the tank before serving that day’s demand.
Use it. Carry the rest forward.
Supply is limited to available water. Unsatisfied demand is recorded; the remaining water starts the next day.
No evaporation, leakage, storm timing, first-flush device, water treatment or automatic weather feed is modeled. Set efficiency to reflect estimated collection losses. Compare scenarios with the same rainfall and demand for a fair capacity study.