Watch a video overview of the ECB Equine Spa - see how it work! Cold Salt Hydrotherapy is used to treat and prevent a multitude of injuries in 35°F / 2°C saltwater. The spa has successfully addressed virtually all lower leg injuries. Treatment temperature alone induces a massive rush of blood and circulation which otherwise would not be present. This drug free therapy can be used for injury prevention and also to increase mobility and reduce swelling in the limbs before and after competitive events and training.