Tank Volume Guide

Helping you choose the right water storage solution for your home. The guide below is intended for residential use only.

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