Try this simple pool heater for yourself you won't be disappointed...
I prefer to use salt over sugar because that's a great way to get ants
I made pool heater in about one hour
Use slightly smaller diameter pipe to reduce water flow so water has some time to heat.Best to use at night to maintain water temperature and also because there is a lot of smoke.

Copper pipe cost me about 5€
Duct Tape 3€
I already had sugar-free

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