Excessive shock agents, especially those containing chlorine, release large amounts of free chlorine. Excessive chlorine not only makes the whirlpool spa hot tub water pungent but can also cause irritation to the user's skin, eyes, and respiratory tract.

A common infection caused by low bromine levels is "Hot Tub Rash", a skin disease caused by Pseudomonas aeruginosa. When the bromine content in outdoor spa hot tub water is insufficient, bacteria can easily multiply, causing redness, itching and pain on the skin, and in severe cases, rashes and pustules may even appear.

According to expert advice, if a swim spa tub is not regularly maintained (such as adding disinfectants, cleaning filters, testing water quality, etc.) for a long time, the recommended vacancy time should not exceed two weeks. If this time limit is exceeded, the possibility of water quality deterioration is greatly increased, and it may need to be replaced and thoroughly cleaned.

·If the stabilizer content is too high, you can try to reduce the concentration by partial water changes. Generally speaking, replacing about one-third of the water can effectively reduce excessive cyanuric acid concentrations. ·If the level is too low, you can use stabilizer in the form of cyanuric acid granules or liquid to replenish it.

Keeping the water quality of your spa hot tub clean is key to preventing spa hot tub lung. Regularly changing the water, cleaning the filter and injection system, and using the right chemicals to control the bacterial content in the water can effectively reduce the reproduction of NTM.

If chlorine shock treatment is performed for two consecutive days, the residual chlorine concentration in the water may be too high. High concentrations of residual chlorine not only produce a strong chlorine smell, but may also irritate the skin and eyes, and even cause respiratory discomfort.