The use of Geotextile water permeability tester needs to follow the operation instructions, and improper operation may affect the accuracy of the test results. Therefore, it needs to be operated and maintained by professional personnel to ensure the accuracy of the test results and the proper operation of the equipment. https://www.qinsun-lab.com/News-and-events/2120.html Geotextile water permeability tester uses test methods including conventional test and pneumatic test, conventional test is applicable to low and medium permeability geotextiles, pneumatic test is applicable to high permeability geotextiles.