Tip 1. Flush with water when it happens!
You can't always be present when your pet decides to pee, but flushing the urine with hose water when it happens, goes a long way to reducing the build up of pet urine odour.
If your dog sleeps indoors and you let them out first thing, they're pretty definitely going to pee within seconds of being let out. This is the largest and most concentrated effort of the day, so it's worth waithing those few seconds and flushing the spot with hose water. Diluting the pet urine thoroughly while it is still liquid will prevent smelly urea crystals forming when that puddle evaporates.
Tip 2. Train your dog to go in the same spot!
Teaching your dog to pee in the same particular area will limit the urine smell buildup to a smaller area of your artificial grass.
Positive reinforcement training is a great way to teach this.
Positive reinforcement training uses praise and/or treats to reward your dog for doing something you want him to do. Because the reward makes him more likely to repeat the behavior, positive reinforcement is one of your most powerful tools for shaping or changing your dog’s behavior.
You really need a controlled environment to achieve this. If your pet is not contained overnight and is free to pee anywhere in the yard, then this tip is not achievable.
If your dog is contained overnight and released to the yard in the morning, muster your dog to a particular area before there is the chance to pee. Once the dog "goes" in the area you want, reward him/her with a little treat. Repeat the process every morning. Be sure not to use the treat to lure your pet to the chosen area, but rather try to muster them where you want them and then only treat them once they have urinated.
If your pet learns to pee in the same spot/or area, the effort will in the long run save you money on TurFresh artificial grass cleaner and time spent cleaning the smelly artificial grass.