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Artificial Grass Drainage Systems

Our artificial grass, no matter traditional coating or new recyclable coating, has good drainage effect. Excess water can be drained out smoothly. It ensures the dryness of the artificial grass surface and keeps artificial grass in good conditions.

However, if the drainage facilities are not perfect, it will cause water to accumulate in the base layer and cannot be drained out smoothly, leading to the artificial grass base caking and uneven, the whole grass wet and other problems. In addition, it will greatly reduce the service life and field performance of artificial turf, and high maintenance costs in the late stage.

It is vital to make out a proper and efficient artificial grass drainage system before laying. A proper drainage system will keep the artificial grass surface hygienic as well as safe for use, and to a certain extent, reduce maintenance costs.

Artificial grass with drainage facilities
Drainage System Recommendations

Based on previous experience, there are two common drainage systems. You can choose the appropriate drainage system according to different actual conditions to achieve the best drainage effect.

Artificial grass with drain pipes
Finger System
  • Suitable for. It is suitable for artificial grass laid on flat areas.
  • Base construction. It is composed of 3 layers, artificial grass carpet layer, filler layer and ground cover. Once the water drains through the carpeting and filler layer, it goes into the ground cover added with gravels or drain pipes to facilitate the drainage.
  • Precautions
    • Base materials. Materials for base construction should be inspected before use.
    • Base appearance. The surface shall be uniform, solid and flawless; the seam shall be smooth without stagnant water.
    • Base drainage. 120 minutes after raining, water not greater than 4 mm is permitted.
    • Thickness tolerance. Allowable deviation of thickness is ±10%.
Artificial grass sports field with channel drainage
Channel Drainage
  • Suitable for. It is suitable for artificial grass laid on graded or sloped areas.
  • Base construction. Before installing artificial grass, the ground is smoothed out to remove valleys and dips that may accumulate water. And then create small, intricate channels that will drain water towards the turf's lowest corner. The water then flows towards drainage ditches, down a drain or straight into the street.
  • Precautions
    • Base materials. Materials for base construction should be inspected before use.
    • Base appearance. The surface shall be uniform, solid and flawless; the seam shall be smooth without stagnant water.
    • Base drainage. 120 minutes after raining, water not greater than 4 mm is permitted.
    • Drainage gradient. When the base is finished, re-test floor level by 10 × 10m square grid and calculate the drainage gradient. The gradient should be not greater than 0.7% and the deviation shall be less than 1.5‰.
    • Qualified ratio. The qualified ratio for evenness, gradient and level shall reach 85% at least.