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The expected life of each hot tub part: hot tub shell (10-20 years), nozzle (5-10 years), filter (1-2 years), heater (5-10 years), water pump (5-10 years), control panel (5-10 years), pipe system (10-20 years).

When the concentration of chlorine in a hot tub is too high, the natural barrier function of human skin may be damaged, resulting in dry and sensitive skin, and even itching. Especially for people with sensitive skin or skin diseases, the irritation of chlorine will be more obvious.

The best time to buy a hot tub: 1. Spring (March to May) - winter is over, demand is reduced, and merchants want to clear winter inventory, 2. Fall (September to November) - demand is also reduced, 3. Black Friday and Cyber ​​Monday, 4. Year-end and New Year sales, 5. Labor Day (early September).

It is generally recommended that healthy adults soak in a 40-degree hot tub for 15 to 30 minutes. This allows you to enjoy the comfort and relaxation of warm water without overheating your body.

Most common wooden or composite decks are designed to withstand a load of about 40 to 60 pounds per square foot (about 200 to 300 kilograms per square meter). However, 4-person hot tubs often weigh much more than this.

Open the drain of the hot water tub and let the water flow out naturally. If the tub does not have a built-in drain, a submersible pump can be used to speed up the drainage process. Use an air compressor or a wet-dry vacuum cleaner to make sure that any residual water in the pipes is completely dried to prevent antifreeze residue.

Muscle and Joint Pain: For athletes or people with chronic pain, hot tubs can provide effective relief. For those with arthritis or other joint problems, saunas can provide comprehensive pain relief.

In a hot bathtub, heat stimulation will accelerate the heart rate and increase the heart load. For the elderly, the heart health is not as strong as that of young people, and the rapidly accelerated heart rate may cause the heart to be unable to bear it.

The height of a hot tub also affects water consumption and energy consumption. Deeper bathtubs require more water and energy to heat, increasing the cost of use and the environmental burden.

In the cold winter, ensuring that the water in the hot tub does not freeze is key to keeping it running. The main purpose of draining the water is to prevent water from freezing in extremely cold weather and prevent financial losses from burst pipes.

Long-term hot tub soaking may cause blood pressure fluctuations, especially in winter when the temperature difference is large. The warm water temperature causes blood vessels to dilate, and long-term soaking may cause a slight drop in blood pressure.

Baking soda is not the only substance that can increase the alkalinity of hot tub water. There are other chemicals on the market that are specifically designed for water quality maintenance, such as alkalinity increasers. These products usually contain sodium carbonate (Na₂CO₃), also known as soda ash.