List of Things Not to Put in Septic Tank: From Chemicals to Bacon Grease
Think twice before sending it down the drain
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One of the keys to a well-working septic system is to avoid putting things in a septic tank that don’t belong there. Whether it’s chemicals that can harm the pH balance of the tank or non-flushable items like cat litter, it’s essential to know what not to put down your drains or in your toilet. Here’s a comprehensive list of things not to put in a septic tank.
Why It’s Important Not to Put Certain Things in a Septic Tank
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A clogged or overflowing septic tank can be costly and messy to fix. Here are the main benefits of putting only the right things in your septic tank:
Prevents clogs and backups
Prevents overflowing or seeping leach fields and septic tanks
Keeps the natural bacteria in your tank healthy and able to break down sludge
Prevents toxic sewage leaking into your home
Prevents sewage smells outside
Avoids the health hazard of an overflowing tank
Saves money by reducing repair and pumping costs
Here’s a comprehensive list of things not to put in your septic tank.
Chemicals
Chemicals can harm your septic system by killing off the natural bacteria that break down the sludge in your tank. When the bacteria is stifled or killed, your tank gets fuller faster, leading to more clogs, backups, and the need to pump your tank more often than usual. Chemicals can also throw off the pH balance in your tank and corrode the pipes in your septic system.
You should avoid putting weed killer, insect killer, and paint in your septic system, as it can poison the wastewater that reenters local rivers, lakes, and coastal waters. If you use household cleaners like bleach, disinfectants, and drain and toilet bowl cleaners, use them only in moderation. Be sure to follow the manufacturer’s instructions. Consider switching to natural cleaning products to ensure the healthiest septic tank possible.
Here are the list of chemicals to avoid putting in your septic tank:
Chemical-based cleaning products
Bleach
Gasoline
Paint thinners
Solvents
Photographic chemicals
Weed killer
Insect killer
Caustic drain openers and cleaners
Fabric softeners
Fats, Oils, and Grease
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Putting fats, oils, and grease down your drain can cause them to get stuck to the sides of your pipes, trapping more debris and leading to clogs. In addition, the bacteria in your tank can’t break down these substances very well, causing them to float in the septic tank and fill it up faster than usual.
Here are the fats, oils, and greases not to put down your drain:
Cooking oil of any kind
Butter
Bacon grease
Animal fats
Drippings from meat
Gravy and fat-based sauces
Mayonnaise
Poultry skins
Salad dressing
Peanut butter and other nut butter
Grease
Medications and Cosmetics
While it can be tempting to flush leftover medications down your toilet or drain, it can ruin the bacteria balance in your septic tank. It also pollutes the wastewater and contaminates people and animals that reuse the water. You should dispose of all medications and pharmaceuticals through a local pharmacy or hazardous waste facility. Cosmetics can also contaminate water, and lotions can cause clogs. Consider switching to natural products when possible, including hand soap that isn’t antibacterial.
Antibiotics
Medicines and pharmaceuticals
Antibacterial soap
Cosmetics
Hand creams
Lotions
Moisturizers
Sanitary and Personal Items
Putting non-biodegradable items down your drain can lead to clogs and your septic tank filling up faster than usual. The bacteria in your septic tank can’t break these items down, leaving them to sit in your tank until it is pumped. Some of these items can also cause clogs in the pipes and sewer lines.
Feminine hygiene products
Wipes (even those labeled as flushable)
Cat litter
Floss
Cotton swabs
Contact lenses
Bandages
Cigarette butts
Paper towels
Condoms
Disposable diapers
Ear plugs
Dryer lint
Plastic, latex, or metallic objects
Pieces of trash
Items That Decompose Slowly
Some items might seem like they could go down the drain, but they can clog the system and cause the tank to fill up faster. Many of these materials can’t be broken down by bacteria, leaving them to take up your tank space. Instead of putting these down your drain, throw food scraps, coffee grounds, and eggshells in a compost bin to reuse in your garden.
Hair
Dirt
Coffee grounds
Large food scraps
Fruit pits
Eggshells
Potato peels
Onion peels
Hard foods
Dry, expandable foods like pasta and rice
Septic Tank Additives
Several types of septic tank additives claim that they enhance your septic system’s functionality. But in fact, these additives aren’t proven to work. In many cases, they can lower the performance of the natural bacteria in your septic tank, leading to more sludge and a fuller tank. It’s best to stay away from septic tank additives. Instead, you can naturally increase the bacteria in your septic tank by adding three rotten tomatoes down the garbage disposal every three months.
Maintain Your Septic System and Know When to Call for Help
Beyond avoiding the list of things not to put in a septic tank, you should also check to see if your septic tank is full every three to five years. Most tanks need to be pumped that often, but sometimes more frequently. If you notice the warning signs of a clogged sewer line, contact a local septic tank repair company to inspect your septic system as soon as possible. A clogged sewer line can lead to leakage, smells inside and outside your home, and health concerns for your family and the surrounding area.
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