Hot Water and Soap Isn't Enough
It seems harmless enough: you finish cooking bacon or frying food, and the easiest place to pour that leftover grease is right down the sink. After all, if you run hot water, won’t it just wash away? Unfortunately, that’s one of the biggest plumbing myths out there—and it could cost you thousands of dollars in the long run.
Grease, fats, and cooking oils behave differently than water. They may look liquid when hot, but as soon as they cool, they solidify. That means grease clings to the inside of your pipes, narrowing the passageway for water and catching bits of food or debris along the way. Over time, grease builds into a stubborn clog that no amount of hot water or dish soap can wash away.
Over time, grease builds into a stubborn clog that no amount of hot water or dish soap can wash away.
Grease and Your Septic System
If your home uses a septic system, the risks are even greater. Septic systems are designed so that organic waste will be broken down by beneficial bacteria. Even if the grease makes it past your pipes, it will certainly end up in your septic tank and begin to wreak havoc.
Scum buildup: Grease floats on top of the tank and forms a thick scum layer. Unlike organic waste, it doesn’t break down easily.
Bacteria disruption: Septic tanks rely on healthy bacteria to digest waste. Grease slows them down and throws off the balance.
Drainfield damage: Once grease leaves the tank, it can clog the soil and gravel in the drainfield, leading to wastewater backups, foul odors, or even system failure.
Repairs to a clogged drainfield are among the costliest septic problems—sometimes requiring complete replacement.
Repairs to a clogged drainfield are among the costliest septic problems.
The Right Way To Handle Kitchen Grease
Luckily, it’s easy to protect your plumbing and septic system with a few simple habits:
Never pour grease down the sink. Instead, collect it in a can, jar, or foil-lined container and throw it in the trash once cooled.
Wipe pans before washing. A quick paper towel wipe removes leftover residue.
Use strainers. Sink strainers catch food particles and greasy bits before they cause trouble.
Schedule septic maintenance. Regular pumping keeps grease and solids from overwhelming your tank.
The Extra Steps In Your Kitchen Are Worth The Effort
Pouring grease down the drain may save you a few seconds at the sink, but the long-term risks are far greater than the convenience. By disposing of grease properly, you’ll keep your plumbing flowing smoothly, your septic system healthy, and your plumbing safer from costly repairs.
