Many homeowners enjoy the convenience of a garbage disposal, but when you have a septic system, it's crucial to understand what shouldn't go down the drain. Improper disposal can lead to costly septic system backups and repairs. This guide outlines what to avoid and explains why, helping you maintain a healthy septic system and avoid expensive plumbing problems.
What are the Dangers of Incorrect Garbage Disposal Use with a Septic System?
Before diving into specifics, let's understand the risks. Garbage disposals, even with careful use, introduce solids and potentially harmful substances into your septic tank. These can:
- Clog your drain lines: Fibrous materials, grease, and hard-to-grind items can accumulate and block pipes leading to your septic tank.
- Overload your septic tank: Excessive solids overwhelm the bacteria responsible for breaking down waste, leading to sludge buildup and inefficient treatment.
- Damage your septic tank's pump: If your system has a grinder pump, improper disposal can damage the pump's blades and motor.
- Contribute to septic system failure: A consistently overloaded septic tank eventually leads to failure, requiring costly pumping, repairs, or even replacement.
Foods to Avoid Putting Down the Garbage Disposal with a Septic Tank
Certain foods are especially problematic for septic systems. Here's a detailed breakdown:
1. Grease and Oils:
Why to Avoid: Grease and oils solidify as they cool, coating the pipes and causing clogs. They also hinder the natural bacterial breakdown process within the septic tank. This leads to sluggish drainage and eventually, a complete blockage.
2. Fibrous Foods:
Why to Avoid: Foods like celery, onion skins, potato peels, and corn husks are tough to grind and can easily clog your disposal and pipes. They create mats that trap other debris and inhibit proper waste processing in the septic tank.
3. Starchy Foods:
Why to Avoid: Although seemingly harmless, large quantities of starchy foods like rice, pasta, and potatoes can swell and clump, contributing to clogs.
4. Coffee Grounds:
Why to Avoid: Coffee grounds form a thick sludge that can easily clog your pipes and septic tank, interfering with the bacterial action necessary for wastewater treatment.
5. Eggshells:
Why to Avoid: While some people recommend eggshells, they're often too hard for disposals to grind effectively, and sharp pieces can damage the grinding mechanism. Plus, the membrane can bind with other waste.
6. Bones:
Why to Avoid: Bones are extremely difficult for a garbage disposal to handle, and even small fragments can damage the mechanism or create clogs.
Other Items to Avoid Putting Down the Garbage Disposal with a Septic System
Beyond food, several other items should never be put down the garbage disposal, regardless of your septic system:
1. Fats, Oils, and Grease (FOG):
Why to Avoid: This is a general category encompassing all cooking oils, fats, and greases. These solidify in pipes, creating major clogs in both your plumbing and your septic system. Always dispose of FOG responsibly by wiping it into the trash.
2. Medications:
Why to Avoid: Medications, even in small amounts, can contaminate the environment. Dispose of expired or unwanted medications responsibly at a designated drop-off location.
3. Sanitary Products:
Why to Avoid: Feminine hygiene products, diapers, and wipes are never suitable for a garbage disposal or septic system. They don't break down and cause serious clogs.
4. Plastics and Rubber:
Why to Avoid: These materials are non-biodegradable and will remain in your septic system, contributing to sludge buildup and potentially damaging the system.
What Can I Put Down My Garbage Disposal with a Septic System?
To ensure smooth operation, stick to soft, easily grindable food scraps like small amounts of fruits, vegetables (without skins or tough fibers), and coffee filters (though these are controversial, check your disposal's manual). Always run plenty of cold water while disposing of food waste.
How Often Should I Pump My Septic Tank?
Septic tank pumping frequency depends on factors like household size, water usage, and the size of your tank. Consult a septic professional for recommendations specific to your situation. Regular inspections can prevent costly repairs.
By following these guidelines, you can protect your septic system and avoid costly repairs. Remember, a little caution now can save you a significant headache – and expense – later.
