Studies have shown that the amount of chlorine absorbed through the skin depends on the concentration of chlorine, the duration of immersion, and the individual's skin sensitivity. Although the amount of chlorine absorbed in a short period of time is small, prolonged exposure to chlorinated hot water may increase the total amount absorbed.

1. Electricity safety distance Generally speaking, the whirlpool hot tub should be at least 1.5 meters away from any electrical equipment (such as wires, transformers, sockets, etc.). 2. Fire protection requirements According to fire safety regulations, the whirlpool hot tub should be at least 1.5 meters to 2 meters away from the wall of the house.

In the United States, according to the provisions of NEC Section 680 for swimming pools, spa hot tubs and similar facilities: · The circuit breaker box or any electrical equipment that requires manual operation must be installed at least 5 feet (about 1.52 meters) away from the spa hot tub.

If the cyanuric acid content of the whirlpool spa tub is slightly higher than 50 mg/L, but not more than 80 mg/L, a gradual adjustment can be taken without immediately emptying the tub. The problem of excessive cyanuric acid content can be alleviated by the following methods: ● Partial water change ● Reducing chlorine content

For those who have a large outdoor space and want to use a spa tub for parties or large family events, a large outdoor spa hot tub is the best choice. Large tubs can usually accommodate 7 to 10 people, or even more.

The shell material of a whirlpool spa tub is one of the main factors that affect the price. Cheap whirlpool spa tubs are usually made of relatively low-cost materials, such as ABS plastic or other thinner synthetic materials. Expensive whirlpool spa tubs are usually made of higher-quality materials, such as acrylic.