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Tank Volume Guide
Helping homeowners plan your water security.
How to use this table
Find your household size.
Look at the
recommended tank size
column (based on 4–5 days reserve).
Choose the nearest available Tuff Tank size (e.g., 400, 600, 800, 1000, 1500, 2000 gallons).
Household Size
(persons)
Daily Usage (Gallons)
Daily Usage (Litres)
4-Day Reserve (Gallons / Litres)
5-Day Reserve (Gallons / Litres)
Recommended Water Volume
1
50 gal / 190 L
190 L
200 gal / 760 L
250 gal / 950 L
250 gal / 950 L
2
100 gal / 380 L
380 L
400 gal / 1,520 L
500 gal / 1,900 L
500 gal / 1,900 L
3
150 gal / 570 L
570 L
600 gal / 2,280 L
750 gal / 2,850 L
750 gal / 2,850 L
4
200 gal / 760 L
760 L
800 gal / 3,040 L
1,000 gal / 3,800 L
1,000 gal / 3,800 L
5
250 gal / 950 L
950 L
1,000 gal / 3,800 L
1,250 gal / 4,750 L
1,250 gal / 4,750 L
6
300 gal / 1,140 L
1,140 L
1,200 gal / 4,560 L
1,500 gal / 5,700 L
1,500 gal / 5,700 L
7
350 gal / 1,330 L
1,330 L
1,400 gal / 5,320 L
1,750 gal / 6,650 L
1,750 gal / 6,650 L
8
400 gal / 1,520 L
1,520 L
1,600 gal / 6,080 L
2,000 gal / 7,600 L
2,000 gal / 7,600 L
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