I have been considering getting artificial turf for my backyard but I have been concerned about the drainage for the dog urine.  I found a company called Global Syn Turf online that has an artificial turf called Pet Turf that seemed interesting to me.  In further research I found their artificial turf to be extra special.  In speaking with the representative the Pet Turf supposedly has three times the amount of drainage as regular artificial turf.   Most artificial turf has a hole punched in the back of the every 4 inches the size of a pencil.  The Pet Turf has 3 holes every 4 inches the size of a pencil for drainage.  The specification sheet says it drains at 121 inches per hour.  This exceptional drainage for an artificial turf.  It is important to have the proper drainage for the pet urine to drain through the backing down to the natural soil.  The maintenance for artificial turf is to hose it off on occasion to help flush the pet urine through the turf.  You are also supposed to use an enzyme based pet deodorizer product to neutralize the pet odor smell.  Global Syn Turf sells a great pet deodorizer if you want to try it.  I want to thank Global Syn Turf for being so user friendly and having great customer service.