Why Is My Shop Vac Blowing Out Water: Main Causes and Easy Fixes

A Shop-Vac is an extremely helpful and versatile tool for cleaning and maintenance purposes. It can vacuum out huge debris as well as liquid substances. However, with these benefits, sometimes, you may face certain issues with Shop-Vac too. For instance, a Shop Vac blowing out the water. So, why does this happen? 

A shop vac may be blowing out water due to clogged filters, improper tank levels, and even the hose connection. Yet, you can find easy and quick fixes for all these problems. So, let’s see the main causes in detail and their solutions for a Shop-Vac blowing out the water. 

Why Is My Shop Vac Blowing Out Water?

In order to find a solution, it is important to know the root problem. Hence, there are mainly three reasons why your Shop-Vac may blow out water such as: 

Reason 1: Clogged Filter 

One of the most common reasons why your Shop-Vac is blowing out water is clogged filters. It is because Shop-Vacs are known to suck in huge debris, dirt, dust, and even liquid sometimes. This could cause clogging in the filters if they are not changed regularly. 

Additionally, your Shop-Vac may also blow out water if you are not using the right kind of filter inside it. 

Reason 2: Tank Levels 

If you have tried to change filters and you’re still encountering the same problem, then you need to check for improper tank or bucket levels. 

For instance, you need to make sure that the bucket isn’t overfilled. If it is overfilled, it will definitely blow the water back out and cause more trouble. 

Moreover, if it is filled more than half, then also the water that is sucked in, is thrown out via the exhaust port. This is rare but it may still happen in certain cases. 

Reason 3: Issues With Hose Connection 

Lastly, if you don’t find any issues with the filter or tank, you may check the hose connection as well. 

If the hose is too loose, it may cause the water to blow out from the Shop-Vac. Apart from a loose connection, it may also be because the Shop-Vac may have holes that could be causing this issue. 

Additionally, if there is an issue with the hose connection, then it could potentially lead to problems with suction power as well. So, make sure you rule out this issue as soon as possible. 

Reason 4: Using Shop-Vac Improperly 

If you notice that the Shop-Vac is blowing out water, there are chances that you are using it improperly for cleaning liquids. 

For instance, if you use filters while vacuuming on wet surfaces, then the filters may get clogged repeatedly and blow out water. Moreover, you also need to maintain and clean your Shop-Vac regularly to avoid these problems. 

How To  Stop My Shop Vac From Blowing Out Water?

Now that you are aware of the causes, let’s see how you can fix these problems easily. 

Fix 1: Change Filters Properly 

Firstly, it is extremely important to change your filters if you haven’t in a long time. It is highly possible that this is the main cause of your Shop-Vac blowing out the water.

It is recommended to change filters at least once in three months if you wish to avoid any problems with your Shop-Vac. 

Apart from blowing out water, a Shop-Vac may also lose its suction power due to dirty filters. So, make sure you replace them regularly. It is also imperative that you go for the right filter only for your Shop-Vac. 

If you have reusable filters, then you need to take them out and clean them properly. 

You can make use of low pressure to blow off the debris from the filters. But, make sure that it is extremely low as high pressure may tear and damage the filters. Then, you can wash the filters and let them dry completely before placing them in the Shop-Vac again. If you don’t, then it may lead to clogs or mold formation. 

Apart from replacing and cleaning, it is essential to know when to remove it. If you’re using Shop-Vac for small quantities of liquid, you may use filters. However, you need to dry them immediately after you’re done to prevent mold and mildew growth. 

Contrarily, you should remove filters when you’re using Shop-Vac for large quantities of liquid. 

Fix 2: Check the Tank Levels and Adjust Them 

As mentioned above, if your Shop-Vac is overfilled, then it can blow out water. You can easily avoid this from happening by checking the tank or bucket levels. 

First of all, certain Shop-Vacs do some with a floating device that prevents the liquid from interfering with the motor or damaging it. Yet, it may not be available in certain vacuums. Hence, this is where the problem arises. 

So, what you can do is, check the bucket level from the hose’s inlet point. If you notice that there’s not much water, then you won’t face the issue again. But, if there is, then you need to drain the tank. 

Fix 3: Tighten the Hose Connection or Replace the Hose 

Lastly, make sure that the hose is connected to the Shop-Vac properly. If the connection is loose, you can consider getting hose locks. 

Apart from the hose locks, make sure that you check the hose for any holes as well. If you find any, it is better to change the hose altogether rather than looking for a fix. 

Is a Shop Vac Supposed to Blowing Air Out?

It is totally okay if your Shop-Vac is blowing some air out. However, keep in mind that if it is excessive, then there is an issue with your Shop-Vac. One of the most common reasons for this is that you may have connected the hose to the blower port. Hence, it keeps blowing the air out instead of sucking it in. 

How Do I Stop My Shop Vac From Blowing?

The fix to this problem is simple. All you need to do is take out the hose plugged in into the blower port and connect it into the tank’s inlet (located in the front). This way the Shop-Vac will suck the air in instead of blowing it out. 

Related Questions:

Why Is My Shop Vac Blowing Air Out?

If your Shop-Vac is blowing air out, then there is some issue with the hose connection. You may have connected the hose to the blower port. But, if you want it to blow the air inside, then connect it to the inlet point.  

How Do I Stop My Shop Vac From Blowing Dust?

If your Shop-Vac is blowing dust, then there are some possible causes and solutions for it. Let’s take a look at the causes and then their solutions! 

  1. Check The Settings

It is highly possible that the Shop-Vac you’re using may have two options – one to suck the dust out and one to blow it out. If your Shop-Vac keeps blowing out dust, then it is possible that there is some issue with the settings.

For instance, there might be buttons present on your Shop-Vac. Hence, there could be a button that sets the Shop-Vac to blow mode. Try to find that button or setting on your vacuum. Once you find it, simply turn it off. 

However, if there is nothing wrong with the settings, you may have to dig in deeper. 

  1. Check The Filters and Replace/Clean Them 

Apart from the settings, your Shop-Vac’s filters may also be causing this problem. So, what you can do is remove the top of your Shop-Vac and check the filter. You may find that it is extremely dirty and clogged. Hence, you need to replace or clean the filters. 

As mentioned earlier, it is suggested to replace the filters at least once in three months. But, if you can’t, then you can simply remove the filter, use low-pressure to remove the debris from it and wash the filter. This way it will become clean again. Make sure you put in the filter only after it has dried completely. 

  1. Get Finer Filters 

Sometimes, the dust may blow out from the Shop-Vac if it is too fine in nature. So, if you notice that even after changing the filters, the dust keeps blowing out, then you need to upgrade your filter. 

You will find various types of filters. For example, if you want t clean up debris, dust, and cement, then it is better to go for a VF5000 filter or a better one than that. If you wish to clean everything indoors and outdoors, you can even opt for a VF6000 filter. 

So, make sure that if nothing works and your Shop-Vac keeps blowing out dust, then go for a better and finer filter than the standard one. 

Why Is My Shop-Vac Overheating?

Do you find that your Shop-Vac is heating up too much? Does it smell like it is burning? Well, if it does, then the chances are that it is overheating. If your Shop-Vac is overheating, there are plenty of possible reasons and solutions for this. Let’s take a look at them. 

Reason 1: Dirty Filters

One of the most common reasons why your Shop-Vac is overheating is that it doesn’t have clean filters. When the filters are too old or dirty, there are chances of more wear-and-tear of the Shop-Vac. 

This happens because due to dirty filters, the air won’t circulate around the vacuum and cause overheating. 

What you can do is remove the filters from the Shop-Vac, check them for dirt, remove the dirt using an air hose, and inspect for any damage. If you see any damage, replace those filters quickly. 

If the filters are clean and proper, then there may be some other reason. 

Reason 2: Problems With Motor Bearings 

The Shop-Vac machine comes with motor bearings. However, if you want these bearings to run smoothly, they have to be properly lubricated. If they are not lubricated, then they’ll have to use too much power to run which will cause overheating. 

So, to solve this problem, just locate the motor bearings in your Shop-Vac. Then, apply a few drops of oil to these bearings. You can try to run this Shop-Vac and see if it works smoothly now. If it doesn’t, then there may be some issue with the motor itself. 

Reason 3: Overusing a Shop-Vac 

If you’re using your Shop-Vac too excessively, then this may be the root cause of overheating. You cannot use a Shop-Vac continuously for a long amount of time. For instance, if it is turned on for the entire day, then overheating is bound to happen. 

So, what you can do is use a Shop-Vac for a short amount of time throughout the day. Turn it off when it is not in use and let it rest. This way you can get your work done whenever needed and reduce the overheating problem too. 

Reason 4: Look Out For Motor Problems 

If you cannot find any of the above issues with your Shop-Vac, then the last option is to check for motor issues. If the motor isn’t working properly, then it may require more power to work. This increases the wear and tear and causes overheating. 

So, you can contact a local Shop-Vac repair technician or even try to check the motor yourself. If there’s any problem, get it fixed or get a new motor depending on the requirements. 

Hence, these are some of the main reasons why your Shop-Vac keeps overheating and how you can solve the problem. 

Final Thoughts

To conclude, Shop-Vac is an easy-to-use cleaner that can save you from a lot of hassle and work. Yet, if you encounter a problem where it is blowing out water, then it could be because of filter problems, hose connection issues, or even the tank/bucket levels. 

With some of our suggested solutions in this blog post, we are sure that you will be able to resolve this issue in no time. Or, if it still persists, you can consider calling up the maintenance or repair team and get your Shop-Vac checked.

Leave a Comment: