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Propelair Dual Flush

Changing your toilets to a more efficient technology can really pay dividends when seeking to save water and energy.

Waterless Solutions - Propelair logo

Despite the vital role it plays in effective sanitation, the toilet has not fundamentally changed since the late 1800s. With UK toilets averaging 9 litres per flush and accounting for up to 70 – 85% of commercial water use in buildings it’s easy to see why traditional toilet systems have become inefficient for modern use.

Propelair is here to change that, using only 1.5 litres of water per flush, a fraction compared to the UK average of 9 litres. Average flush volumes can be significantly higher than their cistern capacity due to double flushing, leakages and filling while still flushing.

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Why is Propelair different?

Standard WC

Dependent on a sufficient volume of water to work, the used flushing mechanisms in standard WCs often result in leaks. Water regulations require all new WCs to have a full flush of no greater than 6 litres. Some standard WCs can flush using under 6 litres, but as water volume reduces, so does available performance leading to double flushing.

Dual Flush

This uses the same flushing principle as standard WCs but the cistern is provided with a reduced flush of no more than two thirds of the full flush which is intended for liquids as opposed to the full flush intended for solids. Again, the reduction in water can lead to double flushing.

Does Macerating Work?

Instead of flushing with water flow and gravity, waste is shredded into slurry and electrically pumped through small-bore pipes to meet the drain. This can be noisy and prone to blocking the shredder.


Requires the building to be fitted with a central vacuum drainage system which sucks waste out of toilets during flushing for onward disposal. They require little water to flush due to the power of the vacuum, but are energy intensive and cannot connect to existing drains.

Pressure assisted

These systems improve performance by using the pressure of the incoming refill water to compress an air store, which acts upon the next flush to boost water flow into the pan.

Compressed air

When the toilet is flushed, a trap door opens to allow the waste to drop into a second compartment, which a compressed airline is able to pressurise to force the contents through a small-bore waste pipe.

Waterless Solutions - propelair handle closeup

Why are dual flush toilets better than single flush?





We will find you a solution so you can take back your commercial savings!
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