Jack's Magic JMIRON2, also known as Stain Solution #1, is a non-acidic formula designed to remove iron, cobalt, and spot-etching stains from various pool surfaces effectively without the need to drain the pool. This product is praised for its ease of use, quickly lifting stains within 48 hours and eliminating the requirement for an acid wash, which simplifies pool maintenance and chemical rebalance. Ideal for regular pool care, it offers a practical solution to handle common discoloration problems caused by metals.