What is The Purpose of Aerator on Faucet – How does It Work

2021/12/10 ClassificationFaucet Guide 31227

Aerator Definition: What Is a Faucet Aerator?

An aerator is the small screen or mesh attachment screwed onto the end of a faucet spout. The aerator definition is simple: it mixes air into the water stream so the water comes out softer, cleaner, and with less splashing. Most kitchen and bathroom faucets include an aerator, and it is one of the parts that needs the most routine cleaning.

Define Aerator: What Does an Aerator Do?

To define aerator in practical terms, it is a flow-control and water-saving device. The aerator adds air to the water flow, which creates a fuller stream while using less water. A standard faucet aerator can reduce water usage by up to 30 percent compared to a faucet with no aerator, and it also helps catch small debris before it flows out of the tap.

What Is the Purpose of an Aerator on a Faucet?

The main purpose of an aerator on a faucet is to control the stream, reduce splashing, and save water. It also helps the water feel softer and look clearer by breaking the stream into many small droplets. In the kitchen, the aerator can also act as a simple filter that catches sediment and scale.

Water conservation

A faucet aerator limits the amount of water that passes through the spout each minute. Low-flow aerators are a common way to meet water-efficiency standards without changing the whole faucet.

Less splashing

By adding air to the stream, the aerator makes the water more uniform and reduces the force of the water hitting the sink. This is especially helpful in shallow bathroom sinks.

Debris filtering

The fine screen inside the aerator catches sand, scale, and pipe debris. If your water pressure drops, unscrewing and cleaning the aerator screen is usually the first fix to try.

Aerator Meaning: Common Types

The aerator meaning can change slightly depending on the type. A standard aerator threads onto the outside of the spout, while a recessed or cache aerator sits inside the spout and needs a special key to remove. Some faucets use a swivel aerator that lets you aim the stream in different directions.

When to Replace a Faucet Aerator

Replace the aerator if it is cracked, heavily corroded, or if the screen is so clogged that cleaning no longer restores water flow. Most replacement aerators cost only a few dollars and can be swapped in minutes. Just match the thread size and the flow rate printed on the side of the old aerator.

Types of Faucet Aerators

Faucet aerators come in several types, and the right one depends on your faucet and your water pressure. A standard male aerator threads onto the outside of the spout, while a female aerator threads inside the spout. A cache or recessed aerator sits deep inside the spout and needs a special key to remove. A swivel aerator lets you aim the stream, which is useful in the kitchen.

Aerators also have different flow rates, usually printed on the side as GPM, which stands for gallons per minute. Older faucets may have a 2.2 GPM aerator, while modern water-saving faucets use 1.5 GPM or 1.0 GPM. A lower GPM saves water, but it can feel weak if your home already has low water pressure.

How to Clean a Clogged Faucet Aerator

If your faucet has weak or uneven water flow, a clogged aerator is usually the cause. To clean it, unscrew the aerator by hand or with pliers, taking care not to scratch the finish. Take the aerator apart, remove the screen and flow restrictor, and rinse them under running water. Soak the parts in white vinegar for 30 minutes to dissolve mineral scale, then reassemble and screw the aerator back on.

For a cache aerator, use the special key that came with the faucet. If you no longer have the key, inexpensive universal cache aerator keys are available at hardware stores.

How to Install or Replace a Faucet Aerator

Replacing a faucet aerator takes only a few minutes. First, unscrew the old aerator, then clean the threads on the spout. Wrap a little plumber’s tape around the threads if the new aerator leaks, and screw the new aerator on by hand. Turn the water on and check for leaks. If water sprays sideways from the threads, the aerator may be cross-threaded; remove it and start again.

Troubleshooting Common Aerator Problems

If water sprays sideways instead of straight down, the aerator screen or the rubber washer is missing or misaligned. If the flow is very weak, the aerator is clogged or the flow restrictor is too restrictive for your water pressure. If the faucet makes a hissing noise, air may be trapped in the aerator; unscrew it, run water for a few seconds, and reinstall it.