When there is a power outage, the effluent is not being pumped into the drainfield. The septic and pump tank will collect the wastewater throughout the power outage, and release it all at once when the power is restored and the pump starts working.

Does septic tank need electricity?

As septic tanks are not dependant on electricity for operation, there are many benefits of having septic tank, which include: Low running cost. Not affected by power outages.

Can you flush toilet on septic With power out?

Be “water-wise” during power outages

When you loose power your toilets, sinks and showers may still work. You will want to reduce the amount of water you use as your septic tank will still collect the water, but it won't be pumping the effluent (liquid sewage from the septic tank) to the drainfield.