The purple staining is caused when the pool water has formed something called copper cyanurate. Copper cyanurate occurs when excessive levels of cyanuric acid combine with non-chelated copper that is present in the water. This problem is most common in pools that have cyanuric acid levels measuring above 100ppm.Click to see full answer. Moreover, how do I remove purple stains from my pool? How to Get Rid of Purple Stains in a Swimming Pool Place a half-pound of pH reducer powder in a white sock. Raise the water level in your pool until it is above all the stains. Add muriatic acid. Brush the stains away once a day for two consecutive days. Clean the filter. Add two to three doses of mineral treatment after all the stains have disappeared. Likewise, why does pool water look blue? The molecules in pool water absorb light from the red end of the spectrum when sunlight falls on the water. By removing the red, the light which ends up being reflected has a slightly blue hue which can vary in richness by water depth. People also ask, can you put food coloring in a swimming pool? Food coloring is cheap and readily available, but it’s not a wise choice for pool dye. For one thing, it will take quite a bit of it to reach a solid red or green color throughout the pool. Furthermore, food coloring is nearly impossible to filter out of a pool.Does chlorine turn water blue?If you urinate in a swimming pool, the chlorine will turn the water around you blue. So finally, the truth: No “special” chlorine makes the water blue (or green, if we were to go by primary color combinations) when urine mixes with pool water. It would be great if someone came up with a formula to make this possible.
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