Skip to main content

Fill Septic Tank Before Backfilling

0:00
0:51
1.1K views

At 0:00 in

Septic Tank Installation: Avoid Collapsing with This ONE Trick!

What happens here

The presenter emphasizes a critical mistake often made during septic tank installation: failing to fill the tank with water before backfilling it with dirt. He advises that as the septic tank is being installed, it is very important to fill it with water. This action creates internal pressure that counteracts the external pressure from the surrounding dirt during backfilling, effectively preventing the tank walls from collapsing inwards. Filling the tank with water ensures it remains stable, weighs down, and maintains its shape, leading to a durable and even final installation.

Goal: Prevent septic tank collapse during backfilling.

Tools and materials

  • Hose — To efficiently fill the septic tank with water
  • Septic tank — The primary component being installed, which needs to be filled to prevent collapse
  • Dirt — To backfill around the septic tank after it has been stabilized
  • Water — To fill the septic tank and provide internal pressure