Dry ice in the pool.....

[klanel]

The only thing I've noticed is that dry ice tends to sink to the bottom. It bothers me to have a very cold chunk of dry ice sitting on the plaster where it will locally cool the spot. I'd be worried about creating small hairline cracks from the thermal expansion differences.

A recent post about using a chiller led made me wonder if dry ice would cool the pool for special events. I knew someone who would drop it in the pool for special effects. Your mentioning the possibility of a crack occurring in the plaster may be enough of a reason for me not to consider letting it sink to the bottom.

 

[JamesW]

People can die from lack of oxygen if the amount of carbon dioxide displaces too much of the normal air.

 

[revitup]

There have been deaths resulting from this seemingly harmless prank.

 

[Sunnydaze]

There have been deaths resulting from this seemingly harmless prank.

Yep

3 people died at an Instagram influencer's birthday party in Moscow after dry ice was poured into a swimming pool

The party was hosted by the Instagram influencer Yekaterina Didenko. The BBC reported that the dry ice was meant to lower the temperature of a pool.

www.insider.com