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What chemicals do I need to maintain my hot tub water?

Asked 2 years ago
To maintain your hot tub water and ensure a safe and enjoyable experience, several essential chemicals are typically necessary. First and foremost, you will need a sanitizer. Chlorine and bromine are the two most common options. Chlorine is effective and widely used for its ability to rapidly eliminate bacteria and other contaminants, while bromine is gentler on the skin and provides a more stable performance in warmer water. In addition to a sanitizer, a pH balancer is critical for maintaining the proper acidity of your water. The ideal pH level for hot tub water is between seven point two and seven point eight. If the pH is too low, you may require a pH increaser, typically composed of sodium carbonate. Conversely, if the pH is too high, a pH decreaser, which usually contains sodium bisulfate, will be necessary. Total alkalinity is another important aspect of hot tub chemistry, and it acts as a buffer for pH levels. The recommended total alkalinity range is between eighty and one hundred twenty parts per million. To adjust total alkalinity, you will use an alkalinity increaser, often made of sodium bicarbonate, or a decreaser. Regularly testing your water with test strips or a testing kit will help you monitor these levels and ensure they remain within their recommended ranges. Finally, consider adding a water clarifier to help keep your water clear and inviting. It is helpful to consult the specific product instructions or guidance available on the Hot Tub Works website for more detailed recommendations on maintaining your hot tub water properly.
Answered Sep 27th 2025

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