"Jacuzzi tub" originally referred to a type of high-end spa bathtub from the Jacuzzi brand. Because this brand introduced a highly innovative water jet system, giving the bathtub unique massage functions, its popularity gradually increased, leading to "Jacuzzi" becoming a general term for all similar jetted bathtubs in many regions.

The warm stimulation of a hydrotherapy spa bathtub prompts the brain to release endorphins, the "happy hormone." Its effects are similar to morphine, but without side effects. People feel light, calm, and even experience increased happiness during hydrotherapy sessions, which is a result of the effects of endorphins.

In most cases, swim spa tubs need chlorine or other effective disinfectants. Chlorine is a highly efficient, economical, and easily controlled water disinfectant that can quickly kill bacteria, viruses, and other harmful microorganisms in the water.

Gravity drainage This is the most common method. Water flows out naturally under gravity by opening the swim spa tub's drain valve or bottom drain outlet. • Advantages: Simple operation, no external power required; • Disadvantages: Slower speed, may require tilting or the use of a suction tool.

While bathing or showering itself does not directly cause UTIs, if the water is unclean or the method of use is improper, bacteria from the spa hot tub can enter the urinary tract through the urethra or minor skin abrasions, thus increasing the risk of infection.

Specifically, the operation of a swim spa tub can be divided into two core components: 1. Water flow driving principle 2. Circulation and filtration principle In other words, the core function of a swim spa tub comes from the synergistic effect of three major systems: hydrodynamics, temperature control, and filtration circulation.