Hi there - I have had my pool for a few years now, but noticed that I was getting iron stains. About 6 months ago I used Citric Acid and then Jacks Purple Stuff to clear the iron, and it did a great job. I went to do it again (after lowering my pH to 7.2 and my FC to 0), but this time I also used Jacks Filter Fiber Magic. My pool is about 14,000 gallons with a cartridge filter so used about 20oz of filter fiber and the 32 oz of purple stuff. I used half a bottle of Citric Acid, not sure what the weight was. I woke up to my pool being extremely cloudy. Wondering if this is the filter fiber, and if so, what action should I take? The pressure on the system has not gone up, so the cartridge filter I have has not gotten clogged. Thanks for the help. Happy to post more info if needed.