by Rick Findley This is a simplification of Rick's DIY KIB Travel Moat. This moat is as simple as can be. You need one large diameter inflatable wading pool and a smaller diameter pool for the inner ring. It requires less than one gallon of bubble juice. This design is super compact. Rolled up and ready to go! See original article for detailed instructions on preparing the outer moat. The outer diameters of the pools used are 45" for the larger pool an 33" in diameter for the smaller one. These pools are offered by INTEX as 3-ring children's wading pools.