What’s The Difference Between Potable and Non-Potable Water Tanks?

Potable? Non-Potable? If you don’t know the difference, don’t worry, you’re not the only one! It’s a frequently asked question from our customers and that’s understandable, as they’re not commonly used terms. Here’s our simple definition:

Potable water storage tanks are suitable for the safe storage of drinking water. Non-potable tanks are not suitable for storing water for human consumption.”

The materials used during the manufacturing process of a water tank, specifically the inside of the tank, which comes into contact with the contained water, dictates what type of tank it will be classed as.

Depending on the intended use of a water tank, it’s important to know the difference.

Potable water storage tanks conform to WRAS (Water Regulations Advisory Scheme) Potable Water Standards and Regulations for the safe storage of drinking water. If you specifically need to store drinking water in the tank, you will need a potable tank.

In general, most plastic water tanks are non-potable tanks and are therefore not suitable for storing drinking water. Non-potable tanks can be used for domestic and commercial rainwater harvesting, where the stored rainwater is used for watering the garden, flushing toilets, for washing machines and for cleaning cars.

View our full range of Potable Water Tanks with capacities ranging from 5 – 30,000 Litres and prices starting from only £20.35.

We’re one of the leading suppliers of water storage tanks online in the UK, view our full range of Water Storage Tanks.