A common way to calculate the frequency of water changes is to use the formula "water volume ÷ number of people using the spa per day ÷ 3". This means that if your spa holds 500 gallons of water and two people use it every day, the water should be changed approximately every 83 days, which is less than 3 months.

it is generally recommended to conduct a comprehensive inspection and cleaning of the swim spa tub nozzles once a month. For environments with high frequency of use or poor water quality, cleaning may be required every two weeks.

People who are not suitable for swim spas: 1. People with cardiovascular disease 2. People with high blood pressure 3. Pregnant women 4. People with respiratory diseases 5. Diabetics 6. People with impaired body temperature regulation 7. People with severe skin diseases 8. People with epilepsy 9. People who are taking certain medications

The swim spa is designed more for exercise than for long-term comfortable soaking. Although it also has massage functions, its massage intensity and comfort may not be comparable to that of a hot bathtub. If the main purpose is to relax and relieve stress, the performance of a swim spa in this regard may not be as good as that of a specially designed hot bathtub.

A swim spa, also known as a "spa pool" or "countercurrent pool", is a device that combines swimming, exercise and hydrotherapy. It can perform swimming exercises like a swimming pool and has the hydrotherapy functions of a hot tub. For those who do not have enough space to build a full-size swimming pool, but want to enjoy water exercise and relaxation at home, a swim spa is undoubtedly an ideal choice.