I have 4 dogs and needed to find an artificial turf product that had superior drainage.  I received many samples of Pet Turf from many different manufacturers, but none like Global Syn Turf.  Their Pet Turf has triple the amount of drainage holes in the backing that allows for 121.4 inches of drainage per hour.  I called a Global Syn Turf dealer and had the Pet Turf installed for almost 3 weeks now and it is working great.