The following table shows the alignment of popular one-piece septic tank models from Tanks-A-Lot with the guidelines within the SOP. Consideration should also be given to special fixtures such as garburators and ‘fill and drain’ soaker tubs.

Larger septic systems can be readily created using two-tank solutions where one or more tanks are dedicated to settlement roles and one tank is dedicated to the pump chamber role.

Click on the models below for additional technical information


Settlement Capacity



400 gallons; 1818 liters

One or Two Bedroom Home Replacement, First Nations, RV Park


652 gallons; 2964 liters

Two or Three Bedroom Home Replacement, First Nations, RV Park


750 gallons; 3411 liters

Two or Three Bedroom Home (2009 AB SOP)


940 gallons; 4270 liters

Four Bedroom Home (2009 AB SOP)


1336 gallons; 6074 liters

Four Bedroom Home (2-Tank System) (2009 AB SOP)


1218 gallons; 5537 liters

Five Bedroom Home (2009 AB SOP)


1361 gallons; 6187 liters

Six Bedroom Home  (2009 AB SOP)


Our septic tank features

Tanks-A-Lot Models 750P and 1020P are available in one manhole and two manhole versions. All septic tank models are also available with Ultrarib riser starters. Contractor preferences vary but the two manhole versions are more popular because of the simpler ongoing access to the pump chamber for maintenance and protection of float masts and piping from vacuum truck hoses cleaning out the settlement chamber.

Burial depths for septic tanks are significantly impacted by site factors and mostly range between 2 feet of earth cover to 10 feet. The Tanks-A-Lot Models 1220P and 1518P have the deepest burial depth rating in the underground concrete tank industry.

All septic tanks from Tanks-A-Lot have the following industry-leading features:

  • Canadian Standards Association approved – CSA B66-05
  • Raised lip manhole on roof of tank for superior sealing of manhole extensions, Ultrarib riser starter available
  • 4” flexible rubber inlet for reduced failures from movement of house sewer line in the tank backfill zone
  • Threaded 1.5” PVC outlet for superior connection of pressure lines to the pump and to the septic field
  • Cold seam one-piece construction locks in the tank roof for superior strength and longevity of the tank
  • 20 year limited replacement warranty on materials and workmanship
  • Concrete manway cover and one roll of butyl rubber sealant for manway extension included at no extra cost

The effluent from most septic tanks is pumped to a septic field, typically consisting of an arrangement of perforated pipe inside a trench covered by a vented chamber. The design of a septic field is significantly dependent upon site factors, such as elevations, lot size, lot layout, soil types, and local by-laws. Design of septic systems is usually done by certified installers and professional designers.

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