2500L Septic Tank

2500L Tanks are suitable ± 5 - 6 People

Simple Septic Tank Installation Guide

Step 1: Prepare the Excavation

• Dig a rectangular hole with a smooth, level, and firm base.

• Spread a 50mm layer of sand or fine soil (no sharp stones) for a stable foundation.

Step 2: Position the Tank

• Place the tank onto the prepared bed and gently settle it horizontally by shifting it slightly.

• Use a spirit level on top to ensure perfect balance.

Step 3: Stabilize with Water

• Fill the tank with water (approx. 700mm deep) before backfilling to prevent distortion.

Step 4: Backfill & Connect Pipes

• Backfill up to the inlet/outlet level with stone-free soil, lightly compacting as you go.

  • Avoid excessive force—tank walls should not bend inward.

• Connect inlet and outlet pipes securely.

• Complete backfilling, ensuring even support around the tank.

Important Safety Notes:

• Maximum soil cover: 200mm above the tank (unless reinforced).

• Vehicle traffic within 2m? Reinforcement is required.

• Consult a professional for deeper installations or structural support.

Need Help? Contact our team for expert advice or certified installer recommendations!