Why is there staining on my new coping?
Staining on new coping is a common occurrence, especially with certain materials like leuders, which are more porous. Over time, these stones can develop white calcium efflorescence on the surface as minerals in the stone rise to the surface. This is a natural process and can be mitigated by cleaning and sealing the stone annually or bi-annually. Despite this, some staining may still appear as the minerals continue to emerge.
In addition, organic material (such as leaves, dirt, or algae) can also cause stains on your coping, veneer or plaster. On the other hand, denser stones like travertine are less prone to staining due to their lower porosity.
To keep your pool coping looking its best, regular cleaning and proper sealing can help reduce staining and maintain the material’s appearance over time.