An Algae Cleaning SS Brush is a heavy-duty stainless steel bristle brush specifically designed to tackle tough, stubborn algae—especially black algae—on hard pool surfaces like concrete or gunite. The stiff metal bristles can penetrate algae colonies embedded in porous surfaces, effectively scrubbing away growth that softer brushes can’t remove. It’s ideal for deep cleaning during severe algae infestations or for regular maintenance in outdoor pools prone to contamination. This type of brush is not recommended for vinyl or fiberglass pools, as the steel bristles can scratch or damage softer surfaces. The SS brush usually attaches to a telescopic pole, allowing the user to reach deep or distant areas without entering the water. For best results, it's often used after applying algaecide or shock treatments, loosening the algae so chemicals can penetrate more effectively and sanitize the pool completely.