Cloudy water after shocking means the shock is working.

Yes, it’s normal. You just nuked your pool with chlorine or a non-chlorine shock, and what’s left behind is all the dead stuff — algae, bacteria, organic gunk — now floating around instead of clinging to surfaces.

Give your filter a chance. Run it 24/7, backwash or clean the cartridge when pressure rises, and the cloudiness usually clears within 24 to 48 hours. If it doesn’t? You might have high calcium or phosphates, but that’s a separate problem.

Final thought: cloudy after shock is a good sign — your pool is cleaning itself.