Early versions of synthetic grass was very similar to a carpet in that the drainage was quite poor causing various problems including the growth of mold and bacteria in the grass fibers. The lack of drainage also meant that the ground underneath the artificial surface became unsustainable with macro-organisms unable to survive. In general the environment was a particularly unhealthy one.

Understandably there was a lot of concern voiced about synthetic grass and its application in light of what the poor drainage was doing to the surrounding ground. Not only was it dangerous for those who was using the surface but it was also dangerous for the organisms that depended on good airflow to survive.

Synthetic grass drainage solutions were required and the synthetic grass manufacturers provided them. They come in a couple of forms, the first in the manufacture of the synthetic grass itself and the other in the preparation of the ground before installation takes place.

Firstly the way synthetic grass was constructed had to change to make it more closely like natural grass. The mesh matting system to which the grass fibers are attached had to change so that it replicated the way grass roots work. These days the grass backing is sufficiently perforated to allow any moisture to drain straight through to the ground below.

The second change has seen the creation of a standard drainage system put in place before the synthetic grass is laid down. The ground is first laid with a crushed stone aggregate sub-base that is capable of removing just about any reasonable level of water that is to flow through the synthetic grass. Inventions such as stone tiles that are laid beneath the artificial grass surface to increase the speed in which the water can get away.

Because all synthetic grass lawns that are installed these days have specifically had special drainage techniques used before the grass is put in place the chances are the artificial grass will drain more effectively than the natural grass that has been replaced.

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