High chlorine levels themselves do not directly cause spa jacuzzi tub water to turn yellow. Chlorine is an effective disinfectant. At normal or excessive doses, it does not directly produce yellow pigments or release compounds that turn water yellow.

1. A significantly stronger, pungent chlorine smell 2. Dry, stinging, or itchy skin after bathing 3. Stinging and tearing eyes during soaking 4. Slight turbidity or floating debris in the water 5. Slight discoloration or corrosion on the spa jacuzzi tub nozzle, cover, or even metal fittings 6. Significantly increased surface foam

Epsom salt is an inorganic salt composed of magnesium (Mg²⁺) and sulfate (SO₄²⁻). While Epsom salt is safe for bathing, it may not be safe for the metal components, nozzles, pumps, heaters, and piping systems inside an outdoor spa jacuzzi tub.

Jacuzzi tubs primarily focus on "relaxing the body and relieving stress." Swim spa tubs, on the other hand, have a more comprehensive design philosophy. They not only provide hydro-massage functions similar to jacuzzi tubs but also feature "constant-temperature swimming training."

"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.

Many people are accustomed to bringing their usual shower gel, bubble bath, shampoo, or skincare oil directly into the spa jacuzzi tub. In fact, these everyday products can easily cause the following problems: • Excessive foaming and bubbling • Clogged filters and pipes • Affecting the effectiveness of disinfectants