[quote1315592074=Crnosrce1] The best system I ever saw was this. Dig the area down 18 inches. Fill with 6inches of sand on the bottom and 12 inches of pea gravel. The sand allows for urine or vomit to sink down and be away from the dog. The gravel allows for a cool area for the dogs to lay on and the movement of the gravel is a great shock absorber for movement. If it is feesible for you, I'd suggest doing that. [/quote1315592074] Thank you for the tip I think that is a great idea. This would not be a kennel set up so the dogs would be staying in that area during the day, I would simply put them in there to poop. I can't control the peeing since they will mark everywhere but if I can keep the poop area controlled it will be very good. Is there a specific sand or gravel I should look for?