I wonder if this could work for outdoor kitties too? How to Build a Dog Potty Area -- A designated potty spot would make it easier to keep the lawn clean for the kiddo, and keep Kiley from getting as muddy when she has to pee on rainy days.
The Family Handyman DIY Tip of the Day: Keep Dog Pee From Ruining Your Yard. Dog urine discolors and kills grass. Replace part of the lawn with landscape fabric covered with pea gravel, then add a few dog-friendly decorations! Wonder if this works
Alternative dog run but prefer flushable gravel one. Perfect Turf® Dog Runs No Muddy Paws! Much easier to maintain than natural grass. More gentle on your dog’s feet than gravel or mulch. Droppings become dry & hard making clean up a breeze!
Barkley & Harper's Potty Area Super easy to do.just some sweat equity. We put down heavy plastic, a layer of pea gravel, a layer of heavy mesh screen (heavy duty pet grade like the kind you put in screen doors), and a final layer of pea gravel.