DIY Stock Tank Pool: One Year Later It’s been an entire year since we built our amazing stock tank pool! For around $800, we created a 8-foot wide oasis that has been enjoyed by friends and family all summer long. Stock tanks are built to sit out and bake in the summer sun to provide water for farm animals in the heat of summer, and I expect this pool to last for years to come. Check out our detailed guide on how to build your own now! The free plans can be found on our Projects page on earthnai