How to prevent efflorescence on stone seating installed near swimming pools?

Efflorescence, the white powdery residue that forms on stone surfaces, is a common issue for stone seating installed near swimming pools. This occurs when water-soluble salts migrate to the surface and crystallize. To prevent efflorescence, follow these steps:

1. Choose the Right Stone: Opt for dense, low-porosity stones like granite or quartzite, which are less prone to efflorescence.

2. Seal the Stone: Apply a high-quality penetrating sealer to create a barrier against moisture and salt migration.

3. Proper Installation: Ensure proper drainage and slope to prevent water pooling around the stone.

4. Regular Cleaning: Use a pH-neutral cleaner to remove salts and debris before they crystallize.

5. Control Water Exposure: Minimize splashing from the pool and rinse the stone with fresh water after chlorine exposure.

For existing efflorescence, gently scrub with a mixture of water and white vinegar or a commercial efflorescence remover. Avoid harsh chemicals that can damage the stone. By taking these preventive measures, you can maintain the aesthetic and structural integrity of your stone seating for years to come.