Proper drainage is crucial for any artificial grass installation, but especially so for artificial grass for residential yards. If water doesn’t effectively drain away, you can end up with standing puddles, muddy areas, and damage to the grass and underlying layers.
That’s why here at Artificial Turf Express, we always remind DIYers to spend as much time as possible planning out their drainage system, starting with these tips:
Assess the Existing Drainage
The first step is to evaluate the current drainage situation in the area you plan to turn into artificial turf landscaping. Look for any signs of poor drainage, such as low spots that collect water, soggy soil, or areas where water tends to pool after rain.
Examine the soil type – sandy, clay-based, etc. Then, check for any existing drainage pipes, downspouts, or other features that you can potentially tie into.
Grade and Slope the Base
Once you’ve assessed the existing drainage, you’ll need to properly grade and slope the ground before laying the artificial grass. The ideal slope for artificial grass is between 1-2% – just enough to encourage water runoff without creating an uneven surface. Follow these steps:
- Use a shovel to remove any high spots or bumps in the area.
- Use a rake to gradually create a consistent, smooth slope across the entire surface, aiming for a 1-2% grade.
- Ensure the highest point is at the edges, sloping gradually down towards the center or any existing drainage access points.
- Use a laser level to help achieve a uniform slope.
Install a Drainage Layer
Adding a drainage layer under the artificial grass is a highly recommended step. This layer helps prevent water from pooling on top of the soil and allows it to drain down and away from the grass. Keep these tips in mind:
- Spread a 1-2 inch bed of washed gravel or crushed rock evenly across the sloped base, making sure it’s level.
- If you have clay-based soil, include a geotextile fabric between the soil and drainage layer to prevent clogging.
- Another option is to use a specialized drainage mat with a raised, dimpled surface to allow water to flow underneath. Some excellent options are AirDrain Tiles or Positive Drain System (PDS) Tiles.
Surface Drainage Solutions
In addition to the base drainage, you may need to incorporate some surface-level drainage features. This could include strategically placed channels, trenches, or even connecting to existing downspouts to direct the water runoff away from your new artificial grass installation. Here are some ways you can do that:
- Create shallow, gently sloped drainage channels or trenches across the area to direct water flow, lining them with gravel or a drainage pipe.
- Install a French drain system by digging a trench, filling it with gravel, and topping with a perforated pipe to carry water away.
- If you have roof downspouts nearby, direct the water runoff from the artificial grass into the downspout system.
Maintenance and Monitoring
Once you’re done, it’s important to regularly inspect and maintain your turf drainage system.
- Regularly inspect the drainage system for any signs of standing water, clogged drains, or other issues.
- Use a broom or leaf blower to clear any debris that accumulates in drainage channels or on top of the artificial grass.
- Refresh the infill material as needed to maintain the proper level.
- Contact Artificial Turf Express ASAP for help solving any drainage problems you find.
Learn More
If you need more help with any part of artificial grass installation in San Jose, reach out to our team anytime. We can assist you with anything you need, from how to install turf, choosing the best products, and more. Call 408-960-2255 today or message us to get started.