1. Refilling the Tub and Initial Shock: As per the AquaSparkle manual you mentioned, it's recommended to add high concentration bromine to reach 50 milligrams per liter after refilling the tub, followed by running the jets for an hour. This is a common practice to ensure the appropriate chemical levels in the water before starting to use the hot tub.
2. Variation in Bromine Levels: You mentioned that bromine levels might be high after agitation. If you're concerned about elevated bromine levels, you can indeed wait for a while to let the bromine dissipate. Then, retest the pH and bromine levels in the water to ensure they are within the proper range.
3. Testing and Adjusting: Regularly testing the pH and bromine levels is crucial to ensure the safety and comfort of the water. Typically, a pH range of 7.2 to 7.6 is ideal, and bromine levels between 3 to 5 ppm (parts per million) are considered safe.
4. Maintenance Routine: Once your hot tub is in the correct chemical state, make sure to regularly test and adjust the chemical levels to maintain water quality stability. If you're wondering how long you need to wait after adding chlorine or bromine, you can check out this article for more information.
https://poolclever.com/blogs/product-blog/how-long-to-wait-after-adding-chlorine-granules-to-hot-tub