Is hair bad for a septic system?

Author: Kira Heaney  |  Last update: Friday, August 22, 2025

When flushed, hair tangles with other waste and sticks to the inner walls of your pipes, creating blockages that are difficult to remove. Over time, this can lead to severe backups, costly septic system repair, and even damage to the delicate beneficial bacteria in your septic tanks.

How long does it take for hair to break down in a septic system?

Hair contains proteins which the bacteria in your septic tank cannot break down. Human hair can take hundreds of years to break down.

Is hair ok for a septic tank?

If the septic is properly designed and sized for the house. A little grease, hair etc is not a problem. I would avoid harsh chemicals. Can kill the natural enzymes that break down the waste.

What will dissolve hair in a septic tank?

Septic-Safe Method #1: Unclogging a Drain with Boiling Water

This method works especially well on clogs caused by grease, soap, or even small clumps of hair.

What will ruin a septic system?

Don't Put Anything Non-Biodegradable in Your Septic System

Cigarette butts. Disposable diapers. Paper towels.

Understanding Septic Systems | Ask This Old House

What hair products are safe for septic systems?

Yes, both Gentle Herb Shampoo and Tea Tree Shampoo are septic safe. Both have a pH of 5.5, both are sulphate and silicone free, and both are fully biodegradable, Soil Association certified and organic.

What is the most common cause of septic system failure?

Most septic systems malfunction because of inappropriate design or poor maintenance. Some soil-based systems (those with a drain field) are installed at sites with inadequate or inappropriate soils, excessive slopes, or high ground water tables.

What is the best septic safe drain cleaner for hair?

Liquid-Plumr Pro-Strength Hair Eliminator Gel Clog Remover, Hair Clog Remover and Drain Opener, Safe for All Septic Systems and Pipes, 16 fl.

What does baking soda do to a septic tank?

Baking soda is sometimes suggested as a natural alternative to commercial septic tank treatments. It's believed to help maintain a balanced pH level in septic systems, which can support the growth of beneficial bacteria that break down waste.

What will dissolve hair in the drain?

Heat 2 or 4 liters of water on your stove or in a kettle to just short of boiling. Add about 1/2 cup of salt. Try pouring this down the drain, then wait 15 minutes before seeing if it will clear more easily. If you need a stronger cleaning, pour 1/2 cup of baking soda down the drain, then add 1/2 cup of vinegar.

Can you take long showers with a septic tank?

Although a properly functioning septic tank should handle the shower water just fine, it will start struggling when you use the shower for an extensive period. For instance, washing the laundry for a long time or taking long showers will only hasten the damage to your septic tank.

Do fingernails break down in a septic system?

Like hair, fingernail and toenail clippings are technically organic matter, but that doesn't mean they'll break down in your septic tank. Avoid problems by clipping your nails into the trash can, instead.

Is dog hair bad for septic systems?

If you have a pet that sheds, chances are pet fur is in your septic tank. While pet fur isn't harmful to the septic system, the debris can clog the pipes and drainfield, ultimately leading to septic system failure. To avoid this problem, regularly brush your pet to remove loose fur.

Is human hair bad for septic systems?

Why does hair cause so many septic tank problems when it goes down a drain? The answer lies in what hair is made of. Hair is made of tough strands of proteins, similar to the material fingernails are made of. For a many reasons, these types of proteins do not brake down easily by the bacteria as organic waste does.

How do you know if your septic is full?

How can you tell if your septic tank is full?
  1. You have trouble flushing your toilet, or it's constantly backing up. ...
  2. Your pipes make a gurgling sound or drain very slowly. ...
  3. Your lawn is suddenly growing lush, green grass. ...
  4. Water starts to pool in your yard. ...
  5. Your home or yard smells like… well, sewage.

How long does it take for poop to decompose in septic tank?

On average, it takes anywhere from three to five years for waste to fully decompose in a septic tank. The decomposition time for waste in a septic tank can vary based on several factors, including the tank's size, the number of occupants in the household, and the types of waste introduced.

Is Dawn dish soap safe for septic systems?

Yes, Dawn dish soap is generally safe for septic systems. It's got quite a reputation for being septic-friendly, and for good reason. As long as you're not going overboard with it, Dawn isn't likely to mess with the bacteria in your septic tank.

What does coke do to a septic tank?

Soda is often full of sugar and high in acidity, which, similar to coffee, can alter the delicate pH balance of your septic tank. While it's unlikely that you're dumping large amounts of soda out regularly, it's something to be aware of next time you don't finish your can of Coke.

What does vinegar do to a septic system?

Baking soda and vinegar are safe and effective cleaners for your household drains and, best yet, they are 100% safe for your septic tank and drain field. Bleach and ammonia-based cleaners (i.e. most of the cleaning aisle at the big-box stores) can be harmful to the good bacteria in your septic tank.

What is a natural drain Unclogger for hair?

If your drain is clogged with hair, baking soda can dissolve hair in a drain. To try this safe and easy method at home – first, pour a cup of baking soda down the drain. Then pour a cup of vinegar (white vinegar) down. Allow the mixture to sit for several minutes.

What kind of laundry soap do you use with a septic system?

Using biodegradable detergents is another way to keep your septic system functioning properly. Ensure that any laundry detergent you purchase is labeled as biodegradable and use the recommended amount.

Is hair clog remover safe for septic systems?

Using traditional, chemical-based drain cleaners on your plumbing system is never recommended due to the harm they can cause to the bacteria living in your septic tank. It can kill off the good bacteria in your septic tank, resulting in: Clogged pipes. Filling up quicker.

How many years should a septic system last?

The average lifespan of a septic system is 15 to 40 years, but it can last longer if properly maintained! Think at the sink. Consider what you put into your toilet and sink and the impact it may have on your system. Many common household items can either clog your system or kill the microbes that treat the wastewater.

How much does it cost to empty a septic tank?

The average cost to pump a septic tank is about $395, but prices can vary widely, from $294 to $514. Several factors can influence the final price, including: Size of the tank: Larger tanks require more time and effort to pump, which can raise costs.

What can mess up a septic system?

Never flush these items down the toilet because they could clog your septic system and cause a failure:
  • Cooking grease or oil.
  • Non-flushable wipes, such as baby wipes or other wet wipes.
  • Photographic solutions.
  • Feminine hygiene products.
  • Condoms.
  • Dental floss.
  • Diapers.
  • Cigarette butts.

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