How to Clean Central Vacuum Pipes

Clean central vacuum pipes are important for effective and efficient performance.  This type of vacuum cleaner is not as popular as the standalone variants but can be quite useful.

We won’t be talking much about the workings or usage of a central vacuum. If you want to know all about it including if it is what you need, you can read our guide on it.

A lot of central vacuums too use cyclonic technology so they rarely lose suction. However, if you mistakenly vacuum a large object or debris ball-up together, it might get stuck in the pipe leading to the remote vacuum.

Since central vacuum pipes run through walls, it’s a bit tricky locating the clog. To clean central vacuum pipes can be costly if you have to call a professional.

So, it is best to be mindful when vacuuming to avoid the clog in the first place. However, we’re offering you a DIY method that works in case it happens. We’re always happy to help.


clean central vacuum pipes


Locating clogs to clean central vacuum pipes

OVO Powerful Central Vacuum System - Heavy Duty Central Vac With Hybrid Filtration - 35L or 9.25Gal - 700 Airwatts Power Unit - OVO-700ST-35H First of all, we need to make it clear that this process is for unclogging the pipes. It’s not like central vacuum pipes get dirty or something.

Ideally, you will have multiple vacuum wall outlets. These outlets are connected to a central pipe that leads to the canister in your basement or garage.

The clog could be at any part of the piping depending on which outlet sucked it in.

Central vacuum pipes are laid out such that each outlet flows to the actual vacuum as directly as possible. This technically makes finding a clog easy.

You can suspect a clog if the suction power of an outlet drops. That means something is obstructing the airflow from the vacuum to the outlet.

  • In this case, test the other outlets closer to the vacuum to gauge their suction too.
  • Most of the time, the outlets closer to the vacuum would have lost suction too. This means the clog is somewhere in the pipe from the outlet closest to the vacuum.
  • There could be cases where the loss of suction is not due to clogs. Then, you might have to go check the vacuum itself.


Steps to clean pipes of clog

Now that you have located the clog, it’s time to deal with it. The easiest way to do that is to use another vacuum. One with powerful suction.

The aim is to pull the clog back and forth until it comes loose. The ideal vacuum to use is one that has a hose you can detach from the brush head. Something like a Shop Vac.

  • Start by inserting the nozzle of the ‘external vacuum’ and turn it on. This will suck the clog toward the outlet.
  • Check the dust cup to see if it has been sucked in. If not, insert the hose of the central vacuum and turn it on to suck the clog toward the central vacuum.
  • Do this back and forth a few times till the clog is pulled into either vacuum.
  • In most cases, it will be sucked into the external vacuum since the clog is closer to it.



Central vacuums are great to have. You don’t have to worry about inhaling dust and allergens. You also won’t be bothered by the noise since the actual vacuum is located remotely.

Another good thing about central vacuums is that they’re not so expensive and you will get loads of attachment tools as well. If you choose to go for it, check out our guide here. It will be a good idea, especially now that you know how to clean central vacuum pipes.

Prolux CV12000 Central Vacuum Power Unit with Most Powerful 2 Speed Motor and 25 Year Warranty!











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