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.

If you use a chlorine-based shocking agent, you need to wait for a period of time (usually about 24 hours) after the shock treatment to allow the chlorine content in the water to drop to a safe level (1-3 ppm) before using the whirlpool hot tub. If you use a non-chlorine shocking agent, you generally only need to wait 20-30 minutes before using the tub again.

The causes of outdoor spa hot tub foam are: 1. Body oils and skin care product residues 2. Soap or detergent residues 3. Unbalanced water quality 4. Cleansing product residues 5. Too much air in the water