Photo collage containing images of Austin Water employees, construction workers, and water infrastructure including pipes and treatment facilities.

Only Flush Toilet Paper

Flushing anything other than human waste and toilet paper can cause sewage back-ups, damage your home plumbing and harm our sewer and water treatment systems. Keep it simple: only flush the 3 Ps.

[H2] What Can I Flush?

Only flush the 3 Ps: Pee, Poop and Toilet Paper.

Toilet paper is the only paper product designed to work safely with the sanitary sewer system.

[Image: 3 Ps graphic]


[H2] What Not to Flush

Never flush anything other than human waste and toilet paper. The items below can clog your toilet, damage pipes, cause sanitary sewer overflows and harm wastewater treatment equipment. Throw these items in the trash — even those labeled "Flushable."

Disposable wipes (even "Flushable" ones) Wipes are typically made with synthetic materials, plastics or polyester that won't break down — or take a very long time to do so.

Feminine hygiene products These products are designed to absorb liquid and can expand in size. Many also contain non-degradable materials.

Paper towels Paper towels are made from dense wood pulp fibers that stay strong when wet and do not break down quickly.

Dental floss Floss doesn't break down in water. Though small on its own, it can tangle with other debris and create large clogs.

Cotton face pads, cotton balls and ear swabs These items absorb water, swell and clump together inside pipes.

Condoms Condoms are not designed to break down in water.

Diapers Diapers are made of super-absorbent materials that expand when wet and can swell significantly once flushed.

Cooking grease and food scraps Grease, fat and oil stick to the inside of pipes and harden. Learn more at our Stop the Grease Blob page.

Medication Prescription and over-the-counter medicines flushed or poured down the drain can contaminate our water supply and harm fish and other aquatic life. See the Pharmaceutical Disposal section below for safe options.

Dead fish Dead fish may carry diseases or parasites that could contaminate the water supply.

Cat litter Most toilets don't use enough water to move cat litter through pipes properly.

Just because something can be flushed doesn't mean it should be.


[H2] Real Clogs in Austin

When non-flushable items enter our system, the results are costly and time-consuming to fix. Here are some recent Austin-area examples.

Bee Caves/Thousand Oaks Lift Station A routine 15-minute service call turned into an all-day job requiring 4 technicians, a truck and a crane to remove a large tangle of rags, wipes and other non-flushable items.

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Pearce and Ross Road Pump Station [Image]

Dessau Lane/Howard Road Sewer Screen This station required emergency cleaning after wipes, diapers, napkins and other items — plus heavy grit — overwhelmed the pumps. Because rags had wrapped around the lifting chains, crews had to manually extract, untangle and clean the equipment before returning it to service. The pump shaft is 45 feet deep.

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Sanitary Sewer Overflow Near W. Slaughter Lane and Menchaca Road A grease blockage caused this overflow. During cleanup, crews also found paper towels, wipes and other non-flushable items.

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Dessau Wastewater Treatment Plant A large accumulation of grit, flushable wipes and rags collected in a wastewater treatment basin. Grit — made up of sand, gravel, plastic and other inorganic material — combined with the weight of wipes has damaged City aeration equipment.

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Dessau Wastewater Treatment Plant An Austin Water employee in a hazmat suit hand-cleaning a wastewater treatment basin. The mass shown is hardened fat, oil, grease, flushable wipes, plastic and other inorganic material — a challenge faced systemwide.

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[H2] The Wipes Problem

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Wipes, paper towels and other paper products don't break down the way toilet paper does. They get caught in sewer lift stations and wastewater treatment equipment, causing damage that must be repaired by hand.

A 2019 study at Ryerson University in Toronto tested 101 single-use wipe products — including 23 labeled "flushable" by the manufacturer. None broke apart enough to safely pass through a home plumbing system and the public sewer without risk of clogging or damaging infrastructure.

The financial impact is significant. The National Association of Clean Water Agencies estimated in 2019 that wipes cost U.S. clean water utilities about $441 million a year in additional operating costs — more than $25 million a year in Texas alone. Those costs can be passed on to customers through higher water bills.

As wipes sales continue to grow across the country, Austin Water reminds you: put all wipes, paper towels and other paper products in the trash. Only flush the 3 Ps — pee, poop and toilet paper.


[H2] At-Home Experiment: Toilet Paper vs. Wipes

Try this simple experiment to see how quickly toilet paper breaks down compared to other products — and why it's the only one that should go down the toilet.

[H3] What You'll Need

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  • Clear containers with lids (such as Mason jars) — one per material tested
  • If your jar has no lid, use a stir stick
  • Testing materials (use toilet paper plus at least one other):
  • Various brands of toilet paper
  • Flushable wipes
  • Non-flushable baby wipes
  • Non-flushable cleaning wipes
  • Facial tissue
  • Paper towels
  • Cotton balls
  • Optional: tape and a pen to label each jar

[H3] Steps

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  1. Fill each jar with tap water. Add one piece of each testing material per jar. Secure the lid.
  2. Shake for 15 seconds to simulate a flush (or stir for 15 seconds if there's no lid). Use the same effort for each jar.
  3. Observe the results. Ask yourself:
  4. Which materials break apart most easily?
  5. Which materials stay intact?
  6. Optional: Leave the jars for several days or weeks to observe further breakdown.

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When finished, throw away all materials except toilet paper — in a waste basket, not the toilet.


[H2] Pharmaceutical Disposal

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Medicine take-back programs are the best way to safely dispose of unused or expired prescription and nonprescription medicines. Flushing medication can contaminate our water supply — treatment plants cannot fully remove pharmaceutical compounds before they reach the environment. Proper disposal also helps reduce addiction and prevent overdose deaths.

Travis County Constable Precinct 5 offers a permanent, free and anonymous pharmaceutical disposal kiosk in their lobby.

Location: 1003 Guadalupe St., Austin, TX 78701 Hours: Monday through Friday, 8 a.m.–5 p.m. Short-term parking is available.

To find other authorized disposal sites in the Austin area, use the Controlled Substance Public Disposal Location Search provided by the U.S. Department of Justice.

The U.S. Drug Enforcement Administration (DEA) also hosts a National Prescription Drug Take Back Day twice a year. For more information, visit the DEA Take Back Day page.

For additional guidance, visit Austin Resource Recovery's Drugs, Medicines and Pharmaceuticals Disposal page.


[H2] Community Outreach Events

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Austin Water's Utility Compliance Services Division regularly participates in community events to share information about flushing safely and stopping grease buildup in pipes. We offer free supplies to help you dispose of fats, oils and grease at home, along with free educational materials for children.

To request Austin Water's participation at your event, email event details to Selene.Castillo@austintexas.gov. Requests do not guarantee availability.

View photos from past events in the Austin Water Community Outreach Flickr Collection.


[H2] Resources

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Flushing anything other than human waste and toilet paper can result in sewage back-ups, expensive damages to your home plumbing system, and cause problems to the sewer and water treatment system. That's why it's important to treat toilets properly, and flush only your personal contributions to the water treatment plant.

 

What Can I Flush?

It's simple - only flush the '3 Ps': Pee, Poop & Toilet Paper.

Toilet paper is the only paper product engineered to be compatible with the sanitary sewer system. Flushing anything other than human waste and toilet paper can result in sewage back-ups, expensive damages to your home plumbing system, and cause problems to the sewer and water treatment system.

3 Ps.png

 

What Should I Not Flush?

Never flush anything other than human waste and toilet paper. The following are examples of items that, when flushed, can clog your toilet, cause significant damage to pipes, create sanitary sewer overflows and impede wastewater treatment equipment. Please dispose of these items, even those labeled “Flushable”, in the trash can.

  • Disposable Wipes (even if marked “Flushable”)
    • Wipes are typically made with synthetic materials, plastics or polyester, that won't break down or take a significant amount of time to do so.
  • Feminine Hygiene Products
    • Feminine hygiene products are designed to absorb liquid and, items like tampons, can increase in size as water is absorbed. In addition, these items often include materials that are non-degradable.
  • Paper Towels
    • Paper towels are typically made from wood pulp, which is much denser and stronger than the fibers used to make toilet paper. They are designed to be absorbent and strong, even when wet, and do not breakdown quickly.
  • Dental Floss
    • Dental floss does not break down in water and though it is small by itself, it can tangle with other items to create a big clog.
  • Cotton Face Pads, Cotton Balls or Ear Swabs
    • ​​​​​​​​​​​​​​Cotton face pads, cotton balls or ear swabs can grow as they absorb water and can clump together in pipes.
  • Condoms
    • ​​​​​​​Condoms are not designed to break down in water.
  • Diapers
    • ​​​​​​​Diapers are made of super-absorbent materials designed to wick away moisture. These absorbent materials also expand when they get wet, which means diapers can swell in size once flushed.
  • Cooking Grease & Food Scraps
    • ​​​​​​​Cooking grease, fat, oil and food particles can stick to the insides of pipes and harden like cement. For more information, see how you can "Stop the Grease Blob".
  • Medication (Pills or Liquid)
    • ​​​​​​​Medicines, whether prescription or over the counter, flushed or poured down the drain can end up contaminating the water supply and can negatively affect fish and other aquatic wildlife.
  • Dead Fish
    • ​​​​​​​Dead fish may carry diseases or parasites that could contaminate the water supply.
  • Cat Litter
    • ​​​​​​​​​​​​​​Cat litter can stay in your pipes as most toilets don't use enough water to move the litter along properly.


Remember, just because something can be flushed, doesn’t mean it should be flushed.

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Austin Area Clog Examples

The below are Austin-area examples of items that have been flushed causing clogs that required extra time and equipment to clear or untangle. These issues can be prevented by only flushing the '3 Ps': Pee, Poop & Toilet Paper. Everything ese should be disposed of in a trash can.

Bee Caves/Thousand Oaks Lift Station: This piece of equipment usually takes a technician about 15 minutes to service the unit. But due to the size of this clog and the entanglements, it took four (4) technicians, a truck and a crane working throughout the entire day to extract the tangled mess of rags, wipes, and other non-flushable items.

Bee Caves Lift Station No Wipes in Pipes

Austin Water pump located at Pearce and Ross Road:

Pearce Lane Pump No Wipes in Pipes

Dessau Lane/Howard Road Sewer Screen: The station required an emergency cleaning as it was clogged with so many wet wipes, diapers, napkins, & other non-flushable items plus grit in the bottom that the pumps were having difficulty keeping up. Because the rags were wrapped around the lifting chains, which helps Austin Water personnel extract the equipment (this piece of equipment is 45ft deep), it became a very involved process requiring more personnel to pull the pump up out of the shaft, untangle and clean the pumps before putting them back into service.

DES FtDessauScreen (1)

Sanitary Sewer Overflow Near W. Slaughter Lane/Menchaca Road: This overflow was attributed to a grease blockage; however, during the clean-up process, a number of paper towels, wipes, and other items that shouldn’t be flushed were also found.

SSO 1301100_March 2024

Dessau Wastewater Treatment Plant (WWTP): Large amount of accumulated grit, flushable wipes, and rags in a wastewater treatment basin. The grit is comprised of sand, gravel, plastic, and other inorganic material flushed into the wastewater system. The weight of the flushable wipes has caused some of the City's aeration equipment to break. 

Large amount of accumulated grit, flushable wipes, and rags in a wastewater treatment basin. The grit is comprised of sand, gravel, plastic, and other inorganic material flushed into the wastewater system.

Dessau Wastewater Treatment Plant (WWTP): An Austin Water employee in a hazmat suit hand cleaning a wastewater treatment basin. The large blob consists of hardened fat, oil, grease (FOG), flushable wipes, plastic, and other inorganic material flushed into the wastewater system. This photo captures the challenges faced systemwide for FOG and flushable wipes.

An Austin Water employee in a hazmat suit hand cleaning a wastewater treatment basin. The large blob consists of hardened fat, oil, grease, flushable wipes, plastic, and other inorganic material flushed into the wastewater system.
The Wipes Crisis
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Wipes, paper towels, and other paper products do not break down like toilet paper and can get caught in sewer lift stations and in equipment at the wastewater treatment facility. These items can damage equipment and must be removed manually.


Wipes, including those marked flushable, present significant issues. According to a 2019 study conducted at Ryerson University in Toronto that examined 101 single-use wipes products –including 23 wipes products labeled as “flushable” by the manufacturer - none of these productsfell apart or dispersed enough to safely pass through an average home’s plumbing system to the public sewer, and through the sewer system for 30 minutes, without “a risk of clogging or causing damage to infrastructure.”

Also in 2019, the National Association of Clean Water Agencies (NACWA) conservatively estimated that wipes result in about $441 million a year in additional operating costs at United States clean water utilities, including over $25 million a year in Texas alone. These costs can be passed along to the consumer in the form of higher water bills.

Moreover, the North Texas Municipal Water District estimates that 5,000-8,000 pounds of wipes are flushed into their wastewater system annually. They estimate this adds an additional $70,000- $100,000 annually to maintain their service area.

As sales of wipes in the United States continues to grow - per a Research and Markets report released in 2022, the United States’ wipes market size was valued at $5.58 billion in 2021 and is expected to reach $8.03 billion by 2027 – Austin Water reminds you to put all wipes, paper towels, and other paper products in the trash. Remember, only flush the ‘3 Ps’ - pee, poop & toilet paper.

At Home Experiment: Toilet Paper vs. Wipes

In this easy at-home experiment, you will see the speed with which common products break down and begin the process of decomposition. This will help you see why toilet paper is the only product that should be flushed down the toilet.

Materials 

Experiment Supplies.jpg
  • Clear containers with a lid, such as Mason jars.
    • You will need one jar for each material you want to test.
    • If your jar does not have a lid, a stir
      stick can be used instead.
       
  • Testing Materials (Be sure to use toilet paper and at least one other material, but test as many materials as you would like!)
    • various brands of toilet paper
    • flushable wipes
    • non-flushable baby wipes
    • non-flushable cleaning wipes
    • facial tissue
    • paper towels
    • cotton balls
       
  • Optional- Tape and pen to label the jars

Procedure 

Experiment Pre.jpg
  1. Fill each jar with tap water and put in one piece of each testing material per jar. Be sure the lid is properly secured.
     
  2. Shake the jar for 15 seconds to agitate the contents (or stir for 15 seconds if your container does not have a lid), simulating a flush. Be sure to shake/stir each jar with roughly the same vigor and time.
     
  3. Observe and describe the changes in the materials and ask yourself:
     
Experiment Post.jpg
  1.  a. Which testing material(s) comes apart most easily?
      b. Which testing material(s) don’t come apart easily or at all?
     
  2. If desired, keep the testing materials in the jar over a longer period (even weeks) to observe the level decomposition.

 When completed, be sure to dispose of the testing material other than  the toilet paper in a waste basket (not a toilet).

Pharmaceutical Disposal
Medicine Flush.jpg

Medicine take back options are the best way to safely dispose of unused or expired prescription and nonprescription medicines.  This is because pharmaceuticals flushed or poured down the drain can end up contaminating our waters as water treatment plants are unable to fully remove these compounds before they reach the environment.  In addition to the environmental benefits, proper pharmaceutical disposal can also reduce addiction and stem overdose deaths.

Travis County Constable Precinct 5 has a permanent pharmaceutical disposal kiosk located in the lobby. Disposal of pharmaceuticals (pills or patches) at this site is both free and anonymous.

Location: 1003 Guadalupe St., Austin, TX 78701  

Hours: Monday thru Friday 8:00 a.m. to 5:00 p.m. (short-term parking is available in the parking lot)

Other authorized disposal sites in the Austin area can be located using the Controlled Substance Public Disposal Location Search provided by the U.S. Department of Justice.

As an alternative to the more permanent disposal sites, twice a year, the U.S. Drug Enforcement Administration (DEA) hosts a National Prescription Drug Take Back Day.  Since the start of the DEA Take Back Day Program (25 events), 1,379,669 pounds of drugs have been collected from the state of Texas alone! For more information, visit https://takebackday.dea.gov/.

For more information about proper pharmaceutical disposal, visit Austin Resource Recovery’s Drugs, Medicines and Pharmaceuticals Disposal webpage.

Community Outreach Events
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The Austin Water Utility Compliance Services Division (UCSD) regularly participates in community events to educate the public about how to “Stop the Grease Blob” and to “Only Flush Toilet Paper”.

At these events, the UCSD offers free items to help you dispose of fats, oils and grease (FOG) at your residence and free educational materials for children.

If you are interested in having the Austin Water UCSD participate at your event, please email event details to elizabeth.coy@austintexas.gov
Note: A request does not guarantee availability.

Community Outreach Photos
Please view photos from past events in the Austin Water UCSD Community Outreach Flickr Collection.