Has your water-hungry pool become just a hole in the ground? There is a way to make that unwanted pool a sustainable feature of your backyard landscape. Jason Isenberg of REALM shares an eye-opening approach to pool retirement. Rather than just backfilling it, explore your options and discover new ways to incorporate an underused pool into a polished landscape — from an in-ground planter to a water harvesting water feature or from an outdoor living space to a sunken patio for bird watching or entertaining.