What should be done before adding chemicals to a pool?

Before adding chemicals to a pool, it is crucial to read the manufacturer's instructions. This step ensures that you are aware of the proper dosage, application methods, and safety precautions for the specific chemicals you will be using. Each chemical can have different requirements based on its concentration, the pool's current water chemistry, and the intended effect. Following these instructions helps to prevent accidents, over-treatment, or under-treatment, which can lead to an imbalance in the pool's water quality and can potentially harm bathers or damage the pool's surfaces and equipment.

Conducting other actions, such as testing water chemistry, ensuring adequate water levels, and performing a visual inspection, while important, should be approached in conjunction with consulting the manufacturer's instructions. These practices contribute to overall pool maintenance, but they do not provide essential instructions on how to safely and effectively add chemicals.