I found a couple threads, one specifically where automobile radiators were used to create a pool heater in an attic. I was wondering before i found that thread, couldn't one use a radiator to cool a pool. I happen to have an unfinished basement and my pool equipment is right beside the house, so adding a loop of piping to some radiators in my basement is doable.
However the question is would it work, and if so how much surface area would you need for it to do anything? Are we talking a bank of radiators or just a handful?
Obviously there would be concerns that something would break and you'd have a pool pumped into your house, so maybe one should just stick with the outside the house idea which would/could be a 30 degree temp difference or so.
I guess comparing this idea with the pool cooler i'm using the only benefit would be no losing water from evaporation since the radiator would be a closed system. However you'd have to power a fan to cause it to cool and buy $100's worth or radiators.
Should have bought the fancy Heat pump that cools, had no idea i'd want/need to cool my pool.....