Diversey - DVO903730 Extraction Rinse flushes out and removes detergent residues that cause resoiling. Formula is safe to use on all types of carpets including wool. It effectively removes hard water deposits and neutralizes residue from past cleanings. Extraction rinse also makes salt residue more soluble, meaning less passes to remove winter salt without leaving tacky residue behind. Versatile formula is strong enough for advanced-generation carpet fibers at low dilution yet delicate enough for wool carpets at high dilution. Slightly acidic cleaner keeps extractor jets from clogging. Cleaner features a fruity scent and is WoolSafe approved.