How to maintain a septic tank - Sanivac

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Septic Tanks

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How to maintain a septic tank

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If your home is not connected to the sewer system, it means you have a septic tank. Regular maintenance of your septic system is essential to extend its lifespan. This article explains how to properly maintain your septic tank and answers all your questions on the subject.

What is a septic tank ?

A septic tank is a wastewater treatment system used in areas not served by a municipal sewer network. It collects household wastewater and provides primary treatment by separating solids from liquids, after which the liquids are typically discharged into a drain field.

What is a septic tank prefilter ?

Since 2010, septic tanks have been equipped with a prefilter. It acts as a safety component by capturing solid materials that have not settled at the bottom of the tank. To ensure your septic system functions properly, it is essential to clean the prefilter every six months. Here is a video showing you how to clean your prefilter yourself.

A well-maintained septic tank prefilter helps extend the lifespan of your septic system and prevents potential issues.

Why clean your septic tank ?

The septic tank collects wastewater from your home, including from toilets, the kitchen, and the laundry room. Heavier solids settle at the bottom of the tank, while lighter materials, such as grease and oils, float on the surface. The water, located between these two layers, goes through a filtration process thanks to the natural bacteria present in the tank.

Over time, sludge and scum build up, reducing the available space in the tank. Without periodic pumping, your septic system could be damaged, leading to costly repairs and significant inconvenience.

Signs that your septic tank needs to be pumped

  • Unpleasant odors around your home or near the tank.
  • Wastewater backing up into the home.
  • Une croissance anormalement luxuriante de l’herbe près de la fosse ou du champ d’épuration.
  • Slow-draining pipes.

Benefits of regular septic tank pumping

  • Prevention of backup damage : A full tank can cause wastewater backups, damaging your home and creating health risks.
  • Reduced risk of blockages : The buildup of sludge and scum can clog pipes and the drain field.
  • Extended lifespan of the tank : Regular maintenance helps prevent premature wear of the tank and system components.
  • Environmental protection : A well-maintained septic system prevents contaminants from entering the soil and groundwater.
  • Maintaining sufficient capacity for proper operation : Ensures adequate space for effective wastewater treatment.

How to maintain your septic tank yourself

  • Monitor water usage : Reducing the amount of water used in your home decreases the load on your septic system.
  • Avoid harmful chemicals : Harsh chemicals can kill the bacteria needed for wastewater treatment.
  • Use biodegradable cleaning products : They are less likely to disrupt the bacterial balance in the tank.
  • Avoid flushing solid items : Wipes, sanitary products, and other non-biodegradable items can clog the system.

Who can pump my septic tank ?

It is essential to hire a specialized company to pump your septic tank and ensure that sludge is disposed of at a site approved by the Ministry of the Environment. Sanivac, a family-owned company specializing in septic tank maintenance since 1961, guarantees high-quality service. For peace of mind, we invite you to book your next septic tank pumping online with Sanivac.

Septic system cleaning frequency

  • Prefilter : Clean every 6 months.
  • Septic tank : Pumping every 2 years for primary residences and every 4 years for secondary residences.

Trust Sanivac for your septic tank pumping

Regular maintenance of your septic tank is essential to extend its lifespan. Cleaning the prefilter and pumping the septic tank are key steps to ensure your system functions properly. Sanivac is your best ally for advice on preventive maintenance and required pump-outs.

Sanivac and Soluo

Sanivac does not install septic tanks. We specialize in the maintenance and pumping of septic systems. For septic tank installations, we recommend contacting our partner Soluo, who specializes in septic system installations.

About Soluo :

Founded in 1995, Soluo is a Quebec-based company specializing in the inspection, design, and construction of septic systems across Quebec. With a wealth of specialized online content and a free guidance service, Soluo is a true reference for septic installations in Quebec. Each year, more than 500 septic systems are inspected, designed, and installed by Soluo’s 65 experts. Soluo has become a key player in its industry thanks to its commitment to providing the best support to Quebec clients in their septic system projects. For more details, visit soluo.com

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The Sanivac Expertise

We answer your questions

Sanivac offers a complete solution for the maintenance of urban, sanitary, and environmental infrastructures. Our main services include :

We provide services for construction sites, municipalities, outdoor events, food industries, schools, shopping centers, farms, and private residences.

This answer depends on the region you’re located in! Thanks to our 9 strategically located branches across Quebec and Ontario, Sanivac serves a very large territory including :

  • Montreal, Laval, Montérégie, Estrie, Lanaudière, the Laurentides, Mauricie, and the Capitale-Nationale region
  • The Outaouais and Ottawa regions through our Gatineau and Ottawa offices

This regional presence allows us to ensure fast service, optimized logistics, and genuine proximity to our clients.

📍 Check out our service map here !

Absolutely. Sanivac is known for having the largest inventory in Quebec, with over 15,000 sanitation units, including :

Our units are available for short- or long-term rental, always delivered clean, inspected, and maintained on a customized schedule.

Yes. We use high-pressure combo trucks for cleaning pipes, unclogging catch basins, garage drains, and even storm and sanitary conduits in underground infrastructure.

This service is essential in spring and fall, especially for commercial buildings, schools, municipalities, and shopping centers that need to prevent backups and flooding.

Yes. Sanivac offers septic tank pumping and maintenance services, mainly in rural areas or for cottages not connected to municipal sewers. We also service holding tanks, sealed tanks, catch basins, valve chambers, grease traps, and more.

We send maintenance reminders and adjust the frequency based on usage and municipal regulations.

Yes. Our team is available for emergency interventions, whether it’s an overflow, a clogged drain, or critical equipment that is no longer functioning. Thanks to our fleet of more than 375 specialized trucks, we can respond quickly based on priority and geographic area.

You can request a quote online in just a few clicks on our website. Simply select the service you’re interested in and fill out the form. A member of our team will contact you promptly to confirm your needs and offer a suitable solution.

Yes ! Sanivac is a Quebec family-owned company founded in 1961, now led by the third generation of the Kelly family. Although we are now present through 9 branches and more than 435 employees, we have preserved our close-knit spirit, our strong sense of service, and our local commitment.

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