How to Clean Concrete Retaining Walls Without Chemical Runoff
Concrete retaining walls are a staple of coastal landscapes in Glenelg, providing vital structural support and defining tiered outdoor living spaces. However, the coastal environment brings unique maintenance challenges. Moisture, sea air, and organic debris frequently lead to unsightly accumulations of salt efflorescence, algae, lichen, and mildew. While chemical washes offer a quick fix, harsh runoff poses a major hazard to coastal soil, native gardens, and local stormwat