How to Unclog an RV Sink?

RV sinks can be a nightmare when they become clogged. If you’re planning to take your RV on the road, it’s important to know how to unclog an RV stainless steel sink so you don’t have any unexpected surprises while away from home. Fortunately, there are several methods that can help get your sink draining properly again.

In this article, we’ll discuss some of these methods and provide tips for preventing future clogs before they occur. From using a plunger or chemical drain cleaners to snaking out the pipes with an auger, we’ll go through all the steps involved in getting your RV sink back up and running quickly without causing any damage along the way. So grab a cup of coffee, kick back, and let’s tackle this issue head-on!

Some Tips for Unclogging an RV Sink

Here are some tips to help you get your RV kitchen sink unclogged as quickly and safely as possible:

1. Identify the Source of the Clog

Identify the Source of the Clog Before you can begin unclogging your RV sink, you’ll need to identify where the blockage is located. Check both the drain and P-trap for possible obstructions that could be causing your clog. If you are unable to locate any visible debris, then you may have a deeper issue that needs to be addressed.

2. Use a Plunger

Use a Plunger Using a plunger can be the easiest and most effective way of unclogging an RV kitchen sink. Start by running some hot water down the drain, then place the plunger over the drain opening, making sure that it is completely sealed. Pump up and down several times with a moderate amount of pressure and then let the plunger stay in place for a few minutes. This will help break up any debris that may be causing the clog, allowing it to drain away more easily.

3. Use Chemical Drain Cleaners

Use Chemical Drain Cleaners If you have an especially stubborn clog, you may need to use a chemical drain cleaner to break it up. These products are highly caustic, so be sure to wear gloves and safety goggles when using them and only use them according to the instructions on the label. Again, run some hot water down the drain first to help activate the product, and then pour in the cleaner as directed on the package. Let it sit for a few minutes and then follow up with hot water to flush away the clog.

4. Use an Auger

Use an Auger/Snake If you have tried all of the above steps and still can’t get your Campervan sink unclogged, then it may be time to break out the auger. This tool is basically a long flexible cable that is inserted into the drainpipe and used to physically break up the clog. Slowly spin the auger in a clockwise motion until you feel it make contact with the blockage, then twist back and forth several times to help dislodge it. Once the clog is broken up, follow up with hot water to flush away any debris that was left behind.

5. Prevent Future Clogs

Prevent Future Clogs To reduce the chances of future clogs occurring in your RV sink, be sure to avoid pouring grease or oils down the drain. These can easily accumulate and form a nasty blockage. Also, keep an eye on what you’re putting down the drain and try to catch any small pieces of food or other debris before they have a chance to enter the pipe. Finally, make sure to regularly run hot water down the drain to help keep it clear and running smoothly.

Following these simple steps can help you get your RV sink unclogged quickly and easily, so you can get back on the road with confidence. Just remember to take precautions when using chemical drain cleaners and be sure to use an auger with caution.

Why is My RV Sink Clogged?

There are a few reasons why your RV sink may be clogged.

1. Grease and Oils

Grease and oils are common culprits when it comes to clogging RV sinks. These can easily accumulate inside the pipe and form a blockage that is difficult to remove without professional help.

2. Food Debris

Small pieces of food or other debris can also cause an RV’s small sink to become clogged. In some cases, a clog may even result from the accumulation of soap or hair.

3. Roots

Tree roots can sometimes find their way into RV plumbing pipes and cause a blockage, especially if the pipe is old and decaying. This type of clog requires professional help to remove.

4. Corrosion

Corrosion can also occur inside RV plumbing pipes, leading to a buildup of debris that causes a clog. This type of blockage is usually caused by old pipes or hard water deposits and requires professional help to get rid of it.

5. Foreign Objects

It’s not uncommon for small objects or toys to be accidentally flushed down an RV toilet, only to end up lodged in the plumbing pipes and causing a clog. If this happens, it is best to call a professional plumber as soon as possible.

6. Debris Buildup

Over time, debris can accumulate inside RV plumbing pipes and eventually cause a clog. This type of blockage is usually caused by the buildup of soap scum, dirt, and minerals inside the pipe. In these cases, it’s best to use an auger or snake to physically remove the debris from the pipe.

7. Incorrect Installation

Incorrect installation of RV plumbing pipes can also lead to clogs. If the pipe is not correctly routed or connected, it can cause a blockage that can be difficult to remove without professional help.

8. Old Pipes

Old pipes are more prone to clogs as they become worn and corroded over time. If your RV plumbing is older than five years, you may want to consider replacing the pipes entirely in order to reduce the chances of future clogs.

9. Hard Water

Hard water deposits can also lead to clogs, as the minerals in the water can build up inside the pipes and cause a blockage. To reduce the chances of this happening, it’s important to install a water softener if you have hard water in your RV.

10. Chemical Drain Cleaners

Chemical drain cleaners should be used with caution as they can damage your plumbing pipes and cause blockages. If you must use a chemical, make sure to follow the manufacturer’s instructions carefully and only use it in extreme cases.

How To Fix a Clogged RV Sink?

We’ve already discussed the main causes of clogs in RV sinks, so let’s now talk about how to fix them. Here are some tips that can help you to fix a clogged RV stainless steel Sink.

  • A plunger is often the simplest and quickest way to remove a clog from an RV sink. Make sure to use one with enough suction power, as this will give you the best chance of success.
  • Augers and snakes are powerful tools that can help to remove debris from the pipes and clear a clog quickly. Be sure to read the instructions carefully and use caution when using one of these tools, as they can be dangerous if not used properly.
  • Chemical drain cleaners can sometimes be used to help dissolve clogs. However, it’s important to use them with caution as they can damage your plumbing pipes and cause more blockages in the future.
  • If all else fails, it may be time to call in a professional plumber. A plumber will be able to diagnose the problem and provide you with the best possible solution. So, there are a few ways that you can try to fix a clogged RV small sink. It’s important to remember that in some cases, professional help may be required in order to successfully remove the blockage.

Why Is My Sink Not Draining When There Is No Clog?

If your RV sink is not draining, you might be scratching your head wondering why it isn’t working. You should first check the drain stopper to make sure the metal rod has not been dislodged, as this could cause a clog. If that is not the issue, chances are you probably have a buildup of debris in the trap of your Campervan sink. 

This happens when particles and other small pieces of food and soap accumulate over time. To remedy this situation, try using a plumbing snake or pipe cleaner to help clear out any trapped debris. Depending on the severity of the buildup, you may also need to take apart your pipes and manually remove clumps of debris from inside them.


Clogged RV sinks can be a nuisance, and they can cause a lot of stress when trying to figure out what’s wrong. But with the right knowledge and tools, you should be able to identify the cause of the clog and find an effective solution. Be sure to use caution when using tools such as augers or snakes, as they can be dangerous if handled improperly. If you find that none of the above solutions work, it may be time to call in a professional plumber. With the right help, you should be able to get your RV sink running smoothly again in no time!

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