Routine maintenance of your artificial lawn generally includes keeping the surface clean of debris, especially that which may decay into the infill, and occasionally brushing the fibre which revitalizes the overall appearance of the lawn.
Rainfall gently cleans the synthetic turf fibres of dust, pollen and airborne pollutants in a way that is difficult to duplicate in any other fashion. In areas where rainfall is scarce, or during prolonged periods of drought, an occasional water flush is beneficial to soak and thus cleanse the turf system (providing water restrictions allow). This process is also encouraged if after a time your pets start favour a particular area of the lawn to do their business. This procedure is recommended for all turf systems.
Here are some additional fake grass cleaning tips:
Do not use any tools that may damage the synthetic surface and do not use solvents like acetone or cleaning materials containing alcohol. Pay special attention in the vicinity of swimming pools and ensure that no pool acid comes in contact with the grass.
Synthetic lawn fibres are highly stain-resistant because most stains are moisture borne and the polyethylene fibres tend not to absorb moisture. Often dirt found on the lawn is not actually a stain but rather residue of foreign matter that must be promptly and thoroughly removed. Most stains can be removed with water or soap and water. Timing is of essence. It is much easier to clean up a fresh spill before it has time to dry and harden. Remove any solid or putty-like deposit promptly using a dull knife or spatula-like tool.
Just like any household item, look after it and usually reward comes in the form of a long lifespan.