Cloudy Water Pool Repair Q&A

I tried everything to clear my 20,000 gallon inground pool's cloudiness and about to drop $200 on chemicals — should I buy them or is it safe to swim first? The water looks like a light milky haze - you can see the bottom but it's definitely not crystal clear like it usually is. I've been maintaining chlorine levels around 2-3 ppm and pH at 7.4, but the cloudiness appeared after we had several heavy rainstorms and a pool party with about 15 people.

I'm particularly concerned about safety since we have young children who aren't strong swimmers yet. The visibility isn't terrible, but it's definitely reduced compared to normal. I've tried shocking the pool with 2 pounds of calcium hypochlorite and running the filter continuously for 24 hours, but the cloudiness persists. Should we avoid swimming until this clears up completely, or is it okay to use the pool with some basic precautions?…more

Nobody warned me that buying this house meant inheriting a pool that looks like a giant glass of milk from the previous owner's neglect. It's not green, just really cloudy and white-ish. I can barely see the bottom of the shallow end. I shocked it when I opened but that was about a week ago. The filter has been running but doesn't seem to be helping much. What's the best way to get this cleared up? I have a sand filter if that matters.…more

Pulled off a perfect shock treatment on my old above-ground pool for this exact cloudy water mess, but my new inground pool still looks like milk. I can barely see the bottom and it's honestly embarrassing with summer parties coming up.

I'm pretty sure I need to do something with the chemicals and maybe run the filter more, but I have no idea what the right steps are or how long this is going to take. Should I be testing the water first? Adding chlorine? Help me get my pool back to that beautiful clear blue!…more

I shocked my pool last night to clear up the green algae, but I woke up this morning to a milky, cloudy mess instead of crystal clear water. I didn't think the shock would make it look worse, but now I'm worried I messed up the chemistry. What caused this cloudiness, and what steps do I need to take to get the water looking right again today?…more