Control, inspection, washing and cleaning Maintenance / repairs Mounting new equipment Further development / new use of the rock room Regular checks can reveal damage / defects / deficiencies that can be repaired cost-effectively before functional failure occurs. Moisture in combination with poor ventilation can cause growth in the form of microorganisms. This should be avoided - but if this has occurred, WGT has good solutions for cleaning the cloth. We use suitable detergent that is gentle on the fabric and the environment.