It perhaps was not clear from my message... My pool is a simple 15 x 4 ft above ground model. My concern was for saving "the pool liner." The liner is covered in scale. The water will have to be drained; it's brown ( not green??) it smells horrible and it's disgusting. It holds approximately 5,300 gallons of water. I wanted to learn if there was a safer,( for the liner) simpler (for me) way of removing the scale from the liner. Having just received my master's degree, I found it helpful to watch many videos during my studies. Therefore, the suggested videos are greatly appreciated, and yes, I have a test kit. I also "fill" from community well water and it is extremely hard water. I did consider adding bleach this afternoon while I was out there with a nylon scrubbing pad and a CLR type lime scale remover, normally used in bathrooms. I did not know how much bleach to add for a pool that size, and it is about 2/3's empty from evaporation over the winter. Thank you for your reply and suggestions.
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