It took about 3 weeks to get the Potty Patch in....and Oliver uses it.
I found a place where you could get just the grass:
Puget Sound Turf - 253.205.7654
That way, I can wash one outside and let it hang our to air out for a few days, and use the spare.
I also though of getting the Purina Doggie Liter box and then laying a potty pad in it and then the grass ......not sure if I want to change tho, since he is great with the Potty Patch.