Drain Cleaning, CCTV Sewer Inspection & Pipe Relining: Swiss VSA Standards, EN 13508-2 & Water Protection
Operational guide for Swiss drain cleaning contractors, sewer inspection specialists, and trenchless rehabilitation engineers: defect coding under EN 13508-2 / VSA, CIPP inliner relining, pressure testing under SIA 190, ADWO waste slurry disposal, and BKP 215.