6 Items You Should Never Rinse Down the Sink

Kitchen sinks get their fair share of usage throughout the day. They also bear quite a bit of abuse. This is because most people are under the impression that their kitchen sinks can handle any sort of waste or liquid. Unfortunately, this isn’t true. Not the kitchen sink or the pipes connected to it are built to handle large amounts of food and liquid waste.

At Wise Choice Plumbing & Rooter, we see the effects of rinsing the wrong things down the drain every day. That’s why we thought it would be a good idea to put this post together. So, before you use you kitchen sink, read this to learn more about the six things that should never go down the kitchen sink.

Cooking Grease

It’s very tempting to pour kitchen grease down your drains because the sink is right there and, well, what else are you suppose to do with it? When you put grease in your pipes, you put your plumbing at risk of becoming damaged and you also put the environment at risk. It’s a better idea to pour cooking grease in a glass jar or create a foil packet to pour the grease into and safely dispose of.


Why would anyone pour anti-freeze down a kitchen drain? Well, take it from us, it happens more often than you realize. This is a very hazardous material and needs to be disposed us according to the manufacturer recommendations. Instead of pouring it down the sink, take it to your local automotive store and ask them to dispose of it for you.

Paint Thinner

Are you in the habit of rinsing your paint brushes over the sink using paint thinner? If so, you could be damaging your pipes and not even realize it. Even in small amounts, paint thinner is quite toxic. Rinse your brushes outside using the garden hose and the paint thinning liquid, but make sure you stay away from delicate vegetation.

Coffee Grounds

When coffee grounds get wet, they clump up and this isn’t good for your pipes. If you’re in the habit of rinsing coffee grounds down the drain, you’re one rinse away from creating a major drain clog. Toss used coffee grounds in the trash can to protect your kitchen sink.


Liquid medications and even pills rinsed down the kitchen sink could spell trouble for your septic system. If your home uses a septic system, it needs to maintain a balanced environment. Rinsing medications down the drain or flushing them introduces chemicals to you septic system that could upset this important balance. Toss your old medications in the trash or, better yet, ask your local pharmacy about recycling options.

Bones and Food Scraps

These items are too big to rinse down the drain. You also need to be careful about placing these items in your garbage disposal. A good rule to follow is when in doubt throw it out.

Sometimes, no matter how diligent you are about using the kitchen sink correctly, you still get deal with clogs. If you find yourself in this situation, don’t fret. Call Wise Choice Plumbing & Rooter for 24-hour plumbing service in Chino Hills and other Southern California cities. We are a full-service residential plumber and commercial plumber providing plumbing repair, replacement, and installation throughout the region. Book a service call today by calling (888) 668-8922.