1. Wash with clean water

Cleaning with clean water is to rinse the inner wall of the steel pipe with clean water, but it cannot completely remove impurities such as calcium and magnesium ion scale and biological slime attached to the inner wall of the steel pipe.

2. Physical cleaning

The working principle of physical cleaning is using compressed air as the power, and use the launcher to launch a special projectile larger than the inner diameter of the pipeline into the steel pipe, so that it moves at high speed along the inner wall of the pipeline and fully rubs it to clean the inner wall of the pipeline. This method won't damage the pipeline. 

3. Potion cleaning

Chemical cleaning is to add chemical reagents to the water, but the chemical composition is corrosive to the steel pipe, and also shortens the life of the steel pipe, which is not advisable.