Does Artificial Grass Drain Well? Understanding Water Flow & Drainage

One of the most common questions we get at TigerTurf is: “What happens when it rains? Will water pool on the surface?” The short answer? High-quality artificial grass, when installed correctly, drains exceptionally well. But not all products or installations are created equal.

Whether you’re installing turf in a backyard, school, sports field or council facility, understanding how artificial grass handles water is essential—especially in Australia, where both heavy rainfall and dry spells are part of the landscape.

In this guide, we break down how drainage works, what affects performance, and how to ensure long-lasting, hassle-free results.

How Artificial Grass Drainage Works

Artificial turf is designed with built-in drainage capabilities. The key lies in two components: the perforated backing of the turf itself and the artificial grass base layer underneath.

• Perforated Backing: Most artificial grasses come with a series of small holes that allow water to pass through quickly. These drainage holes are evenly spaced across the surface to ensure consistency.

• Base Preparation: Beneath the turf sits a compacted aggregate base—usually made of crushed rock or road base. This layer allows water to percolate through and drain into the soil or drainage system below.

Together, these elements prevent water from pooling on the surface—keeping your lawn usable even after heavy downpours.

Types of Drainage Systems

There are two main types of drainage methods used in artificial grass installations:

1. Vertical Drainage: The most common system, where water flows straight through the turf backing into the crushed rock base and soil.

2. Horizontal Drainage: Used in areas where vertical drainage isn’t possible (e.g. on concrete). Water is directed across a slightly graded surface to reach built-in drains or runoff areas.

For best results, drainage design should be tailored to the site—whether it’s a flat suburban yard, sloped school grounds, or high-traffic council space.

What Affects Drainage Performance?

Even with a quality product, poor drainage can result from incorrect installation or unsuitable site conditions. Here’s what to watch out for:

• Improper Base Preparation: If the base layer isn’t deep or compacted enough, water won’t filter properly.

• Blocked Drainage Holes: Over time, dirt or debris can clog the perforations, reducing flow. Regular cleaning prevents this.

• Poor Site Grading: Water needs somewhere to go. Ensure there’s a natural slope or installed drainage channel to move water away from the surface.

• Pet Waste Build-Up: In pet areas, solids or waste left uncleaned can restrict drainage and lead to odour or bacteria issues.

Our team at TigerTurf always ensures proper site assessment and base construction before any turf is laid—because drainage is just as important as durability.

Is Artificial Grass Suitable for Heavy Rain?

Yes—but only if it’s installed correctly.

Premium TigerTurf products are engineered to handle large volumes of rain. In fact, our synthetic turf is often used in sports fields and school grounds that require year-round usability, regardless of weather conditions.

Here’s why it performs well:

• Quick water dispersal prevents pooling

• No mud or slippery patches

• Safe to walk or play on soon after rain

Tips to Maximise Turf Drainage

To ensure optimal performance and longevity, follow these expert recommendations:

• Hire experienced installers: Professional installation makes a massive difference in drainage outcomes.

• Keep it clean: Regularly remove leaves, dirt, and debris that can block water flow.

• Inspect drainage paths after storms: Especially in winter or during long periods of rain.

• Choose the right turf: Not all turf products are made equal—look for backing with effective perforation patterns and quick-flow materials.

Ideal for Australian Homes & Facilities

Whether you’re in Brisbane dealing with summer storms, or in Melbourne where weather changes by the hour, well-installed artificial turf offers peace of mind. It stays dry underfoot, keeps pets clean, and doesn’t turn into a soggy mess.