There's no difference between granular shock and bottled bleach other than concentration (read that as convenience, not shock strength!). One downside to the granular shocks is they may add chemicals to your pool you don't want.
The white stuff you see is almost positively dead algae. Your water will turn grayish or milky looking from the dead algae. Your filter will clean this out over time.
Keep the shock level up until you pass the overnight FC test and until your CCs drop below .5. Don't get Pool Stored!!
bleach is water, salt, and the same chemical as the granular shock- without the additves of the granular shock...
Bleach is not causing this- FC converting to CC eating away (oxydizing) contaminants /algae/ etc is causing this- regardless of where the FC comes from!
Yep, keep going until CC is below .5, and you pass the overnight FC test. I won't say your water has to be clear because it took a few days for my filter to clarify the water. It just looked white for a while.
looks like my CC is now only .5
But my FC is only .5 as well. Should I still give "shock level" chlorine, or just find out on my pool calculator what I need to get to FC to around 5 if my CYA is at 45?
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