Central Vacuum Frequently Asked Questions - Answers And Information

Q: What is a central vacuum?

A: Most built-in systems consist of a power unit, centrally located, which contains the vacuum producing motor and dirt collector. From the vacuum unit, tubing is simply routed through walls by way of the attic or under floors to conveniently located wall inlets. To vacuum, a lightweight, flexible hose is inserted into the wall inlets. All surfaces in the home can be cleaned efficiently using the versatile cleaning tools.

Q: Why buy a central vacuum?

A: Vacuum cleaning has become an essential part of day-to-day existence. Global weather is changing and pollution is at its peak; all this is bringing more dust and dirt into homes. Of course then there are children and pets that bring in more than just dirt. Somewhere down the line, the requirement for vacuum cleaners has become essential. Finding the right central vacuum cleaner can be a difficult task, hence central vacuum cleaning is the best option because it’s reliable and functionally effective.

Q: Why choose Drainvac?

A: Ingenuity, creativity, innovation, and professionalism—at your service for 30 years. Our in-depth knowledge, our experience, and our passion combine to offer you the most complete and best-performing product on the market, whether your needs are residential, commercial, or industrial!

Q: What differentiates Drainvac from other similar maintenance products?

A: Drainvac offers the greatest range of products on the market, one of which is unique: a vacuum that drains automatically. So far, no other similar product comes close to the impressive characteristics of this vacuum.

Q: What is this Automatic self-flushing central vacuum cleaner?

A: Better known as the Drainvac Automatic, this revolutionary machine—considered to be the best on the market environmentally—connects directly to the water pipes and sewer drainage of a house or business. The principle is simple: water, suction, and a drain. With the automatic-drain vacuum, there are no more bags to change and no more filters to clean—it empties itself.

Q: How does the Drainvac Automatic system work?

A: As soon as the vacuum is turned on, water sprays at the opening where dust enters the appliance. The dust becomes heavier and settles to the bottom of the tank. The tank is sealed by a valve that remains closed when the vacuum is in operation. After 15 minutes, the vacuum stops automatically. As soon as the vacuum stops, the tank empties itself for 10 seconds into the sewer drain of the house or business. Then the vacuum automatically starts again. This cycle repeats itself for as long as the vacuum is in operation. When the vacuum is turned off, the water drains. Water never accumulates in the tank so it remains clean.

Q: Why buy a Drainvac vacuum cleaner in the Automatic series?

A: Most importantly, like all other Drainvac machines, the automatic-drain vacuum can be used to do the weekly household cleaning.
In addition, it can be used to:

  • Empty a spa.
  • Empty a blocked sink, bath, or toilet.
  • Wash the household carpets and couches.
  • Wash the carpets and seats in the car.
  • Wash the windowsills.
  • Wash the cement floor in the garage.
  • Pick up all spilled liquids.
  • And much more...

Q: How do I maintain and clean the Automatic?

A: The only time water travels through the vacuum’s hose and pipes is when picking up liquid. This might leave the hose and pipes dirty. To clean them, simply vacuum some clean water from a sink. Then, leave the vacuum on to suck in air for 10 minutes. This will dry out the hose.

Q: How long should a central vacuum last?

A: Central vacuums typically last forever. Typically, most central vacuums come with a lifetime warranty on the unit. There's very little, if any, maintenance needed.

Q: What are the benefits of having a central vacuum?

A: Central vacuums are more like a whole house cleaning system - they improve the air quality, reduce noise pollution, minimize the physical effort, all while providing superior cleaning power for your floors and living space. There are so many advantages of owning a central vacuum, ease of use being a big one. They are a simple and effective way to remove dust, dirt and other allergens away from your home.

Q: Are central vacuums affordable, a good investment, & more popular?

A: Central vacuums are more affordable than you think. They can fit anyone’s budget. They increase the resale value of your home without investing much more than the cost of a portable vacuum. The air quality eliminates dust particles as well as odors in the living area. There is no noise pollution. You literally don’t hear anything. Installation is easy to plan and do. CV’s can be installed in any home, new or existing.

Q: Why is a central vacuum convenient?

A: There is no canister or upright vacuum to lug around or up or down stairs. No dangerous electric cord to get in the way and trip on. No wheels to scratch wooden floors. No damage to walls or furniture. No dust or odors. Better for allergy suffers and better for the environment.

Q: What Inlets would you use?

A: Depending on the application and the power unit model will dictate which inlets are utilized for the installation. Things to consider are styling and color.

Q: Where should I locate my wall inlet valves?

A: The wall valve inlets should be located within six feet of a household receptacle. We suggest that you take a 30 foot length of cord or a measuring tape set to 30 feet then walk though your home and locate your wall inlets so that they cover all the areas you wish to vacuum.

Q: Will a dedicated electrical circuit be required for a central vacuum power unit installation?

A: Yes. It must be either a 15 amp or 20 amp circuit depending on the specific power unit you are installing

Q: My Central Vacuum has lost a lot of its suction. What is the most likely cause?

A: If you have not regularly cleaned your motor filter that may be the cause of poor system performance. Other problems that cause poor system performance are, leaky wall valve inlets, blockages in the intake or exhaust piping, or a blockage in your system hose.

Q: Why is a central vacuum better than a portable vacuum?


  • LIts economical
  • Its built-in convenience
  • It is a powerful vacuum
  • It helps you breathe easier
  • It stops noise pollution
  • It adds to the value of your home
  • It eliminates the need to drag a clumsy machine around