Washing stone is a natural stone that is used for the treatment of wastewater. The stone is made of porous volcanic rock and is designed to remove pollutants and contaminants from the water. It is used in conjunction with a bio septic tank or a wastewater treatment plant.One of the main benefits of washing stone is its effectiveness in treating wastewater. The stone is highly porous, which allows for the effective removal of pollutants and contaminants from the water. It is also eco-friendly and does not require any chemicals or energy to operate.

Washing stone is easy to install and requires minimal maintenance. It is also cost-effective compared to other types of wastewater treatment solutions.