Why does foam form in hot tubs?

Is something interfering with your relaxing spa experience?

Hot tub foam is usually caused by the buildup of organic compounds, such as body oils, lotions, and detergents, in the water. When these compounds mix with the hot water and chemicals in the hot tub, they can create foam on the surface of the water.
In addition, high levels of calcium in the water can also contribute to foaming. Calcium can react with other chemicals in the water to create foam or bubbles.
Foam in a hot tub can be unsightly and can also interfere with the performance of the hot tub’s jets. It can also be a sign of poor water quality and may indicate that the hot tub needs to be cleaned and maintained.
To prevent foam from forming in your hot tub, it’s important to maintain proper water chemistry and cleanliness. This includes regularly testing the water and adjusting chemical levels as needed, as well as regularly cleaning the filters and draining and refilling the hot tub as recommended by the manufacturer.
In addition, showering before using the hot tub can help remove excess body oils and lotions from the skin, which can reduce the amount of organic compounds in the water and help prevent foam from forming.
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