Tap aerators are also sometimes known as flow regulators. The aerator is a small attachment that either fits onto the end of the tap or can be inserted inside of the existing spout. These water saving devices will control the amount of water that flows through the tap without affecting the water pressure as they mix the water with air which will save water and money. The aerator acts as a sieve, separating a single flow of water into many tiny streams which introduces the air in to the water flow. Also as there is less space for the water to flow through, the water flow is reduced, resulting in water savings. As the water pressure is maintained, most people don't notice a difference in the amount of water coming out of an aerated faucet yet benefit from the water efficiency. However, if you are filling the sink to wash dishes, it may take twice as long, a small price to pay for the associated water savings. Tap aerators are of most use to those with older taps in their home which run on average around 15 litres of water per minute. Adding an aerator to an older tap can reduce this to as little as 6 litres of water per minute. You can install aerators on 95% of taps however the biggest water saving benefit is achieved in the bathroom or kitchen sinks where you are often turning the taps on and off to wash your hands and for other uses. The aerators are cheap and easy to fit and you should be able to do it yourself especially if you are just replacing an old aerator as you just unscrew the old one and screw on the new one. If you tap doesn't have an aerator then you just need to check it has a thread on the inside and select the correct size and screw it in and then begin to benefit from the savings. This type of aerator is commonly found within basins, taps, bidets, mixer taps, faucets and the like.
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