A Spotting Revolution Has Begun!
If the problem is in the carpet backing or the pad, then the solution is the Water Claw Sub-Surface Spot Lifter. Flush out urine contamination, soda pop, oils, soap residues, food spills, etc. completely.
Use with a truckmount, portable, or mini-extractor. Accepts 1.5" or 2" hose cuffs.