2-Layer Drainage

This System Incorporates Two Distinct Layers:

  • Upper Layer: Finer gravel or decomposed granite for leveling and stability.
  • Lower Layer: Large crushed stone (3/4 inch aggregate) for structural support and water dispersion.

How It Works

The lower layer acts as a reservoir, allowing water to disperse and drain into the soil, while the finer upper layer provides a smooth, stable surface for turf installation.

Ideal Applications

Moderate to high traffic areas such as backyards, commercial spaces, or pet-friendly lawns.

Regions with moderate rainfall where enhanced drainage is required.

In Pet areas, this system prevents odour build-up by improving drainage flow.

ADVANTAGES

Improved Stability:

Reduces settling issues compared to a single layer.

Enhanced Water Management:

Handles moderate rainfall effectively.

Versatility:

Suitable for most residential and light commercial projects.

LIMITATIONS

Limited Performance:

Struggles to handle heavy rainfall or poor soil drainage, leading to potential pooling.

Settling Issues:

The base may settle unevenly over time in areas with high moisture.

PRO TIP

For pet areas, use infill materials like Zeo-Odour Zeolite with no weed barrier, combined with dual or triple-layer systems for optimal odour control and drainage performance.