Chlorine-Free Pool
Forget the pricey store‑bought ionizers. This guide shows how to make a solar‑powered copper system that keeps pool water clear without chlorine.
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swimming pool
About Copper
That’s why they removed copper from swimming pools because they realized that copper was so antibacterial that it was completely purifying the water.
WWII Concentration Camps
A few details about the holocaust your history class might’ve forgotten to mention.
