What happens after you flush (2024)

Are you flushing wet wipes? Please don't

Before we look at what happens after you flush, let's go back a step and check you're doing the right thing before you flush.

Wet wipes are rubbish. They do not break down like toilet paper when flushed. Even wipes that are labelled "flushable" are definitely not!

Wet wipes block pipes.

Please only ever flush the three Ps: pee, poo and (toilet) paper.

Wet wipes are rubbish

What happens after you flush (1)

What happens after you flush (2)

What happens after you flush?

You probably don’t usually think about what happens after you flush the toilet, wash your clothes or take a shower.

All this water (as well as other things like dirt, washing powder and soap) flows down the drain and into the sewerage pipes connected to your property. This liquid waste is known as sewage.

But just imagine if you had to remove this waste yourself, make sure it didn’t harm the environment and treat it to get rid of all the nasties. Yuck!

Love your loo - here's how!

The sewage treatment process

At Unitywater, we do the dirty work for you. Every minute of every day!

The sewerage system pumps the sewage to a treatment plant where it is processed and treated to remove any contaminants. Once treated, the resulting effluent is released back out into waterways, where it continues its journey through the water cycle. In some cases, the effluent may be re-used for activities like watering gardens and sporting fields.

Each household's sewerage usage charge covers the costs of removing, treating and disposing of this waste.

If you use less water, you pay less, but never more than 49.4 cents per day.

How much sewerage usage do you pay?

Number of people in household
(based on average water usage of 168 litres per person per day)

Cost per day to remove, treat and dispose of waste

1 person

10 cents per day

2 people

20 cents per day

3 people

30 cents per day

4 people

40 cents per day
(that’s just $146.00 per year)

Sewerage usage for residential customers is capped at 740 litres per day to limit the impact on high water users and anyone who may have a concealed leak on their property

49.4 cents is the maximum daily usage charge any household will pay for removing, treating and disposing of waste.

As well as removing and treating sewage for you, we build, maintain and replace the sewer pipes, sewage pump stations, sewage treatment plants and other sewage infrastructure for less than $2 per day. This is what your sewerage access charges on the bill pay for.

Everyone can play a part in helping us to reduce our operational costs by simply thinking at the sink. Be mindful about everything you’re flushing or putting down the sink or drain.

And definitely no wet wipes down the toilet. They are NOT flushable (even if the packaging says so)!

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What happens after you flush (2024)

FAQs

What happens after you flush? ›

B A TREATMENT PLANT runs wastewater through a chain of basins and tanks, progressively removing solids, dissolved solids and harmful pathogens. By the time the water is released, it has spent 8 to 16 hours in the facility and is at least as clean as the body of water it's released into.

Where does it go after you flush? ›

Where does the water go after you flush the toilet or drain the sinks in your home? When the wastewater flushed from your toilet or drained from your household sinks, washing machine, or dishwasher leaves your home, it flows through your community's sanitary sewer system to a wastewater treatment facility.

What happens after you flush something down the toilet? ›

Waste makes its way through the sewer system until it reaches a municipal wastewater treatment plant. The wastewater treatment plant processes sewage in stages that separate water from a layer of sludge and remove pollutants, pathogens, and other contaminants.

What happens to toilet paper after flushing? ›

In water, those fibres quickly come untangled and form a thin sludge that's easily carried by the water flow in the sewage system.By the time it reaches the sewage treatment plant, most of the toilet paper has completely disintegrated, and goes straight to the sludge digester tanks to be broken down into compost, along ...

What comes up when you flush? ›

Scientists have known for decades that, when flushed, toilets expel small particles of water, urine, feces and, at times, dangerous pathogens that are invisible to the naked eye. But researchers haven't been able to see the airborne particles, nor understand how and where they spread.

Can you get something back after flushing it down the toilet? ›

Usually, it's easier to retrieve your lost object than you may think. If you can still see the object at the base of the toilet bowl, then it's only partially flushed or didn't make it down. If this is the case, strap on some rubber gloves and gently fish your object out.

Is toilet water clean after flushing? ›

Unless you keep your toilet water a constant shade of blue with toilet bowl tablets, your water, after you flush, should be clean and clear. However, for some homeowners, they might start noticing that every time they flush, that clear water now appears to have a brownish or dirty tinge to it.

Is it better to flush or throw away toilet paper? ›

Treatment plants effectively remove toilet paper from wastewater, but all other garbage should go in the trash can. These Items belong in the trash can. The only thing you should ever flush down a toilet is human waste (urine and feces) and toilet paper.

Is it okay to use toilet paper after pooping? ›

Wiping thoroughly and washing your hands after a bowel movement are the two most important ways to prevent odor and the spread of pathogenic (disease-causing) bacteria. For people who have solid bowel movements, this will mean wiping with toilet tissue.

What countries can you not flush toilet paper? ›

You typically shouldn't flush toilet paper in Turkey, Greece, China, Montenegro, Egypt, and rural areas throughout South America.

Do toilets spray germs when flushed? ›

Prior research has demonstrated that flushing a toilet creates an aerosol plume that can travel five feet or more, spreading germs to floors, walls, sinks and other surfaces in a bathroom, researchers said in background notes.

Is there bacteria in the air after flushing the toilet? ›

Experimental work has clearly shown that droplet nuclei toilet plume aerosols are capable of entraining microorganisms as large as bacteria (Barker and Jones 2005), can migrate well away from the toilet (Jessen 1955; Darlow and Bale 1959; Barker and Jones 2005), and can remain viable for extended periods while airborne ...

Why does it smell after I flush? ›

Generally when you have a foul odor when flushing the toilet it means the toilet wax ring is not sealed to the toilet or the floor. Whenever you put water into a drain, it first has to push the air away.

How far does a toilet flush travel? ›

Prior research has demonstrated that flushing a toilet creates an aerosol plume that can travel five feet or more, spreading germs to floors, walls, sinks and other surfaces in a bathroom, researchers said in background notes.

What happens in the shower when you flush? ›

To achieve your desired temperature, your shower valve is mixing hot water and cold water. However, when the toilet is flushed, cold water is temporarily siphoned away from the shower as the toilet refills. This makes the mixture of water coming out of your showerhead much hotter.

How long does a toilet plume stay in the air? ›

Remove air from private and common area bathrooms.

Earlier, we mentioned that aerosol droplets could remain airborne for up to three minutes. Some studies report that these droplets can remain airborne even longer, as long as 15 minutes.

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