History & Innovation How did they keep pools clean before chlorine? February 5, 2026 by Tanp | Leave a Comment Before the widespread use of chlorine, keeping pools clean involved a variety of natural and manual methods. These techniques focused on maintaining water clarity and preventing the growth of harmful bacteria and algae. Understanding these historical methods can give us insight into the evolution of pool maintenance and inspire eco-friendly alternatives today. What Methods Were […] Read more ยป