What usually needs to occur before an inspector checks the filtration system in a spa or hot tub?

Before an inspector can effectively check the filtration system in a spa or hot tub, it is essential to fill it with water. The filtration system operates by circulating water through filters, and without the presence of water, there is no way to assess whether the system is functioning correctly. Filling the hot tub with water not only allows the inspector to observe how well the filtration system cleans and circulates the water but also enables them to identify any potential issues such as leaks or ineffective filtration.

Other tasks, while important in their own right, cannot replace the necessity of having water in the system to conduct a proper inspection of the filtration functionality. For example, removing the cover or testing the water may be preliminary steps, but they do not assess the operation of the filtration system itself. Cleansing the filter might contribute to maintenance but is not a prerequisite for checking the filtration system during an inspection. Thus, filling the spa or hot tub with water is critical for a thorough evaluation of the filtration system's performance.