The Pet Loo
The Pet Loo was launched in Australia in 2006. Under the grass is a slanted ramp with grooves to direct drainage of the urine into the removable tray in the bottom of the unit. The grass lifts off for easy cleaning.

I heard at least one complaint that the “grass” was very poor quality and that the dog would not use it. His concern included the fact that the synthetic grass was tied with pieces of plastic that shredded easily. Another tester said that they still use it after potty training their pet since they live in a high crime area where it isn’t safe to go out at night.

Order the Pet Loo.