If multiple jets are turned on, the increased water flow will also increase the pump load, which may actually reduce the heater's heating efficiency. This is because the heater requires a certain water flow rate to effectively transfer heat, and excessive water flow may dilute the heat transfer effect.

Impact is a crucial step in ensuring water quality and proper functioning of the luxury spa hot tub. The impact time is generally 10–20 minutes, which can be extended to 30 minutes for larger water volumes or complex systems. Frequency is recommended once a week or after each use, depending on the actual situation.

Theoretically, a swim spa hot tub can be installed underground, but its feasibility depends on several factors. Underground spaces are characterized by being enclosed, having high humidity, and limited ventilation, which may affect the normal use and safety of the swim spa hot tub.

In a swim spa hot tub, you can do exercises like jumping jacks, knee raises, leg raises, and side steps, all set to music for a relaxing aerobic workout. • Duration: 20–30 minutes per session, moderate intensity. • Benefits: Improves cardiorespiratory endurance, burns calories, and increases metabolic efficiency.

The high temperature, jets, and chemical disinfectants in a whirlpool spa hot tub all pose potential hazards to the head. Furthermore, submerging your head in the water can cause suffocation, burns, ear damage, or microbial infection. Children and the elderly are particularly at risk and must be strictly supervised.

Human circadian sleep rhythms are closely linked to changes in body temperature. Body temperature typically drops gradually during the night, signaling to the brain that it's time to rest. However, soaking in a whirlpool spa hot tub increases your body's surface temperature, causing your capillaries to dilate. Afterward, your body temperature drops rapidly.