Why is my pool water cloudy after shocking it?

Cloudy water after shocking is usually just the shock doing its job — it oxidizes organic contaminants into solids that float in the water. Run the filter 24/7 and give it 12–24 hours. If still milky after a day, check pH and alkalinity first; high pH makes clarifiers useless. If those are fine, use a clarifier or flocculant, or if calcium hardness is high, you may need a sequestrant or more patience.