Total Alkalinity (TA) – The First Step to Balancing Total alkalinity measures water's buffering capacity against pH changes; it can also be understood as the "foundation of water quality stability." • Ideal Range: 80–120 ppm. If alkalinity is too low, pH will fluctuate frequently; if alkalinity is too high, pH adjustment will become difficult.

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.

If the product design is reasonable and construction is carried out according to specifications, the outdoor sauna steam room can withstand daily light to moderate rain, provided the structure is undamaged, the seal is intact, and the roof slope is appropriate. Light rainfall usually will not cause substantial damage to the equipment.

The bathtub water temperature is maintained between 36°C and 40°C. While this temperature is comfortable for humans, it's ideal for bacteria that thrive in warm environments. Legionella and Pseudomonas aeruginosa multiply rapidly at this temperature, and without regular water changes or disinfection, bacterial numbers can increase rapidly.

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.