Drain Cleaning Methods: Best Ways to Unclog a Drain

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Safe DIY drain cleaning methods can help with minor grease, hair, and soap scum buildup before you call for help. Boiling water works best on grease-related kitchen sink clogs, baking soda and vinegar can freshen a drain and loosen light bathroom buildup, and a plunger or manual drain snake can help when the clog sits close to the drain opening. If clogs keep coming back, more than one fixture is backing up, standing water returns quickly, or you notice signs of main line trouble such as gurgling or sewage odors, it’s time to schedule professional drain cleaning.

Before you try any of these methods, remove the sink strainer or stopper and clear away visible debris. For a kitchen sink, you may also need to check the P-trap under the sink if the clog is nearby.

DIY Drain Cleaning Methods You Can Try First

Boiling Water

This can work well if you have a kitchen sink that is backed up from grease-related buildup. Many people make the mistake of putting grease from cooking bacon or ground beef into the kitchen sink. Unfortunately, as the grease cools, it solidifies in the pipes. Boiling water can melt the grease enough to get the water moving again, but it’s usually only a temporary fix.

However, the grease itself can also trap bits of food and other debris, making a larger clog. In these cases, while the water may melt the grease it may not completely remove the clog. Boiling water also isn’t a good choice for every pipe material, so if you’re unsure what your pipes are made of, use a safer DIY option or call your plumber before pouring it down the drain.

Vinegar and Baking Soda

For other types of clogs, a mixture of vinegar and baking soda may work. This may be more effective for a shower or tub drain with minor hair and soap scum buildup. First, remove the standing water. Then, pour one cup of baking soda into the drain, followed by one cup of apple cider or white vinegar. Expect the solution to bubble, and be careful, as it can get messy. Wait about 15 minutes, then flush the drain with hot water. Repeat if the clog isn’t broken up.

The mixture can also help reduce drain odors, although it won’t disintegrate a solid obstruction completely. It works best for minor soap and hair buildup rather than thick blockages or objects lodged in the pipe.

Plunger

This tool can work in both toilets and for clogged sinks. It’s especially helpful if you have a clogged double sink. You may wish to purchase a new plunger to use in a kitchen sink, shower, or tub, however, versus using the toilet plunger.

For double sinks, plug one side of the sink first. Then, insert the plunger into the other side of the sink taking care to ensure that the seal is tight. Keep enough water in the basin to cover the plunger cup, and block any overflow opening with a wet cloth so you can build pressure. Pump the plunger until you can feel the pressure change and the clog dislodge.

For tubs, place enough water in the tub to cover the plunger cup and block the overflow opening before you start. Plunging works best when the clog is close to the drain opening, not deep in the line.

Plungers won’t remove or dissolve the clog. In these cases, the pressure applied by a plunger simply moves the clog along the pipe and allows the standing water to clear.

Plumber’s Snake vs. Improvised Tools

You may be able to clear the standing water and break the clog apart by using a proper plumber’s snake, also called a drain auger. A manual snake is safer and more effective than forcing an improvised tool into the drain, and it can help you reach hair and debris that sit beyond the drain opening.

A coat hanger is a last-resort improvised option if you don’t have the right tool, but be careful when using it. It won’t reach as far as a snake will, can scratch fixtures, and won’t be as effective as professional drain cleaning.

Professional Drain Cleaning Methods

Hydro Jetting

Hydro jetting uses a high-pressure water jet to scour the inside of your pipes. It works best for heavy grease buildup, stubborn sludge, and recurring clogs that keep returning after DIY clearing.

Motorized Drain Snaking

A motorized drain snake is the professional version of a manual snake. It works well when a clog is deeper in the line or too dense for a plunger or hand auger to move.

Rooters

Rooter service is designed for tougher sewer and drain line blockages, including tree roots. This is a call-a-pro-now situation because roots can damage the pipe and block the main line.

Video Camera Pipe Inspection

A video camera pipe inspection lets your plumber see where the clog is, how severe it is, and whether the pipe has damage. It’s especially useful for recurring clogs, multiple backed-up fixtures, and signs of main line trouble.

Which Drain Cleaning Method Works Best for Each Type of Clog?

Why Chemical Drain Cleaners Are a Bad Idea

Despite their popularity, chemical drain cleaning agents aren’t a good idea. The chemicals are very harsh, intended to dissolve many different types of matter that accumulate in your drains. Over time, and with frequent use for backed-up drains, the chemicals can start to corrode the pipes, creating thin spots, weakening the seams, and leading to slow leaks or even a burst pipe. 

What Professional Drain Cleaning Service Includes

Professional plumbers can remove clogs of any size and consistency and clean out your pipes on a regular basis to prevent clogs from building up in the future. Your plumber will start by asking what your pipes are made of, how old your home is, and whether you’ve had recurring clogs or slow drains. Then, they’ll physically examine the pipes, often using a small camera threaded into the pipes themselves to get a look.

A good professional drain cleaning visit may include hydro jetting, a motorized drain snake, or a video camera pipe inspection, depending on what is causing the blockage. These tools can clear buildup, restore flow, and confirm whether the clog is gone or if a larger main line issue is involved.

A good professional drain cleaning service will completely remove the clogs and flush the pipes to make sure they’re clear. They may run the camera through the pipes again to ensure that the clog or clogs are gone. They may make a recommendation about how often to have professional cleaning in the future before small clogs become big plumbing problems.

How to Prevent Future Drain Clogs

It’s easier to prevent clogs from forming than it is to have your pipes cleaned. Your plumber can give you advice that’s customized to your patterns of use, but there are a few good rules of thumb for making sure that clogs don’t form in the first place.

• Use sink strainers to catch food scraps, hair, and other debris before they enter the drain
• Throw cooking grease in the trash instead of the sink so it doesn’t harden inside your pipes
• Remove and clean sink stoppers regularly so hair, soap scum, and residue don’t build up around the opening
• Check the P-trap under a sink when a nearby clog slows drainage, especially in the kitchen or bathroom
• Limit what goes through your garbage disposal to small scraps, and keep coffee grounds, eggshells, peels, and large leftovers out of it
• Flush only toilet paper, and throw wipes, facial tissue, and feminine hygiene products in the trash
• Schedule preventative drain maintenance once or twice a year if your home is prone to slow drains or recurring clogs

Schedule Drain Cleaning Service Today

Professional drain cleaning doesn’t just have to happen when you have a clog or standing water. Regular service can clear buildup, restore flow, and protect your pipes and keep your plumbing working the way it should. 

Schedule a service appointment with your local Bluefrog Plumbing + Drain expert.

Drain Cleaning FAQ

Which drain cleaning method is most effective?

The most effective method depends on the clog. A plunger or manual snake can work for a nearby blockage, while hydro jetting is often the best choice for heavy buildup, recurring clogs, and lines that need a thorough cleaning.

Is baking soda and vinegar good for unclogging drains?

It can help with minor hair, odor, and soap scum buildup, especially in bathroom drains. It usually won’t clear solid obstructions or deeper clogs.

When should I use hydro jetting instead of snaking a drain?

Use hydro jetting when the line has heavy grease, sludge, or recurring buildup that snaking only punches through temporarily. Snaking is often enough for a single, localized clog.

Are chemical drain cleaners safe for pipes?

No. They can damage pipes over time, especially with repeated use, and they may not solve the cause of the clog.

When should I call a plumber for a clogged drain?

Call your plumber if more than one fixture is backing up, slow drains keep returning, standing water comes back quickly, or you suspect a main line problem from gurgling, sewage odors, or tree roots.