Just an update. So after 4 days of shocking with 30 bottle of bleach(121 oz 8.25%) so far plus brushing and vacuuming. My pool has improved much better.In fact, i could see the bottom of the shallow end of my pool now, the deep end is 9ft so i think it may take a while. Many thanks to this forum. My cya raise up from 0 to 30 just in a few day ( i massaged my socks of stabilizer every couple of hour, and i think it really help to dissolve faster). Today i accidently raise up the fc level from 13 to 16, i wonder if it gonna damage anything?Anyways, hopefully my swimming pool will be ready next weekend. Again, thanks guys. Here are some pics:
