Spas versus Swim Spas, how are they different and what are the benefits of owning either one? A regular spa (sometimes called a hot tub) is a completely self-contained body of water that people use to relax in, to recover from sore muscles and other aches and pains, or to simply reconnect with their family and friends. It contains about 300 to 500 gallons of water. A swim spa is a … [Read more...] about What’s a Swim Spa and How Is It Different From a Regular Spa?