Biofouling, impurities, scale, rust, and pollutants accumulating within the pipeline can lead to scaling on the inner walls of the geothermal pipes, resulting in insufficient water flow and inadequate heat dissipation, severely affecting the heating efficiency.

Statistics indicate that after about a year of use, a geothermal pipe with 1mm of scale buildup on the inner wall can lead to a 6-degree drop in heating temperature. Moreover, as the scale on the inner wall thickens over time, the temperature will decline annually. Therefore, it is recommended to scientifically clean and maintain geothermal pipes after two years of use to avoid pipe blockages, which can prevent heating and even cause leakage or seepage.