When you are done, there's no equipment to return. Ideal for adding insulation to spas after installation and for winterizing equipment. Water in an insulated pool remains warmer than non-insulated. Insulating may save, or reduce, the cost of a heater. Insulated spas require less energy to heat water, retain heat longer.
Insulation protects valves, pipes, control enclosures from moisture, freezing.
Insulation adds dimensional stability, internal support to spa vessels.