How to Get Rid of Black Algae in a Pool (Black Spot Treatment)
Key takeaway: Black spot algae won’t clear at normal chlorine levels. It grows a protective outer layer that shields it from your usual 1 to 3 ppm sanitiser, so it … Read more
Pool Care
Pool Water Chemistry 101: The Complete Beginner’s Guide
Key takeaway: Five numbers run every backyard pool: pH 7.2 to 7.6, total alkalinity 80 to 120 ppm, calcium hardness 200 to 400 ppm for concrete or tiled pools (100 … Read more
What Is Pool Acid? What It Does and How Much to Use
Pool acid (hydrochloric acid) lowers pH and alkalinity in Australian pools. What it does, roughly how much to use, and the safety steps that matter.