How much muriatic acid should I add to my pool to achieve optimal pH balance without risking damage to the pool’s components? Is there a specific formula or guideline that dictates the precise quantity, especially when considering variables like the volume of water and current pH levels? Additionally, how does one accurately measure the acid to avoid either excessive or insufficient application, both of which could lead to complications such as corrosion or algae proliferation? When monitoring changes post-application, how long should one wait before retesting the water to ensure that the adjustments have yielded the desired results? Should one take into account external factors like temperature and usage frequency that might necessitate different amounts? Furthermore, how crucial is it to follow safety precautions during the handling of muriatic acid, and what protective gear should be employed to safeguard against potential hazards? Can expert guidance or detailed instructional resources be beneficial in navigating these inquiries?