Historical Innovations How did they keep pools clean before chlorine? March 6, 2026 by Tanp | Leave a Comment Before the widespread adoption of chlorine, pools were kept clean through a variety of ingenious, albeit less efficient, methods. These historical techniques relied on natural filtration, manual labor, and sometimes even animal assistance to maintain water clarity and hygiene. Understanding these methods offers a fascinating glimpse into early pool maintenance practices. The Pre-Chlorine Era: Maintaining […] Read more ยป