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Testing the pH Level. Refilling a whirlpool spa hot tub may seem like just changing the water, but in reality, the water composition can differ each time it's filled. Tap water, well water, or filtered water have significantly different mineral and carbonate content, all of which directly affect the water's pH balance.

While luxury swim spa tubs possess a certain degree of outdoor weather resistance, not all environments are suitable for exposed installation. Rainproofing is particularly necessary in the following situations: • Long-term open outdoor environments • Rainy or humid areas • Installation on wooden platforms or surfaces prone to water accumulation • Infrequent use

Risk of excessively high water temperature This is the most important safety factor for pregnant women using a luxury swim spa tub. If the water temperature exceeds 38°C, it may cause the pregnant woman's body temperature to rise, blood pressure to fluctuate, and even affect the normal development of the fetus.

The main component of bleach is sodium hypochlorite (NaClO), a strong oxidizing agent commonly used for sterilization, bleaching, and stain removal. While it is effective at eliminating mold and bacteria in a home environment, its use in swim spa hot tub components can pose potential risks.

If you use a swim spa hot tub primarily to relieve work stress or improve sleep, 2-3 times a week is sufficient for optimal results. Each session should last 20-30 minutes, with the water temperature maintained between 36-38℃. This relaxes muscles without causing excessive fatigue.

CYA, short for Cyanuric Acid, is a white crystalline organic compound, often referred to as a "chlorine stabilizer" or "chlorine protectant." Its main function is to stabilize chlorine in outdoor spa hot tub water, preventing it from being decomposed by ultraviolet rays in sunlight, thus extending the effective time of chlorine.

If an outdoor spa hot tub is exposed to sunlight for extended periods, if disinfectant is insufficient, or if the filtration system is not functioning properly, algae will grow and multiply rapidly, causing the water to appear noticeably green or cloudy. This is one of the most common causes of "green water."

When the pH exceeds 8.0, carbonates precipitate under heating conditions, forming tiny suspended particles. These particles adhere to the foam interface, making the foam stronger and harder to dissipate. Therefore, high pH itself is not a "foam maker," but it is a "foam maintainer."

In fact, modern luxury swim spa tubs are equipped with advanced constant temperature systems and high-density insulation designs, so even when the outside temperature is close to zero degrees Celsius, the water temperature can still be stably maintained within a comfortable range.

When we soak in the hot water of a spa jacuzzi bathtub for an extended period, some of the skin's natural oils are removed, and moisture is lost from the stratum corneum, weakening the skin's protective barrier and causing keratinocytes to loosen and shed. This physiological reaction is more pronounced in winter or in people with sensitive skin.

When people bathe in whirlpool spa hot tubs, pores open and the skin barrier weakens, allowing microorganisms to easily enter the body through tiny openings. Potential health problems include: • Skin infections and folliculitis, • Respiratory irritation, • Eye and ear inflammation.

In a spa jacuzzi tub, the surrounding air humidity is high, making it difficult for the body to perceive moisture loss. Even if the body is "sweating," the warm, humid environment causes the sweat to quickly mix with water, so we don't feel it. However, the body's internal water is continuously decreasing through metabolism.