Monday, May 21, 2018

YOU ASKED - The 'when' and 'what' of septic system pumping


How often do I need to pump my septic system?
When to pump a septic system depends on the age and capacity of the tank and the usage of the system (number of users, frequency of use). 
  • It is recommended that a system is pumped out every 3 - 5 years.
  • Under the Ontario Building Code:
    •  "a septic tank must be cleaned whenever sludge and scum occupy 1/3 of the working capacity of the tank" (Section 8.9.3.4)
  • Pumping your system on a regular basis allows you (or your pumper) to ensure all components of your septic system are properly working.

What you need to know when a pumper comes to clean your tank
  • Septic tanks with two compartments (most tanks installed after 1973 will have two compartments) will require both to be accessible so they can be pumped out.
  • A pumper may "backwash" the tank  to remove any accumulation of solids at the bottom of the tank which can then be easily removed. 
  • On average, pumping of a septic tank should take between 20 to 30 minutes to complete.
  • After a septic system is properly pumped, there should be very little scum, sludge or liquid remaining in the tank.
  • If your system has an effluent filter, it is good practice to have your filter cleaned annually as well as at the time of pumping. 

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