Scrub for fluid power

Fluid power search-term reports are contaminated: hobbyist tractor restoration ('hydraulic pump for John Deere tractor'), DIY agricultural projects, automotive enthusiasts restoring old equipment. Without aggressive negative work, Smart Bidding learns to chase the cheap clicks (hobbyists spend less but convert at <1% rates). Scrub detects the contamination using NLP heuristics and bulk-suggests negatives. For hydraulics, contamination patterns include: tractor (unless you sell agricultural OEM), restoration, hobby, kit, ATV, Jeep, motorcycle, custom, garage, DIY. Scrub flags these patterns automatically and exports them as a bulk negative list. The AI-assisted classification is valuable for ambiguous terms: 'mobile hydraulic' could be industrial mobile equipment (high-intent OEM buyer) or hobbyist mobile welding rig (contamination). Scrub uses NLP to suggest the likely intent based on co-occurrence patterns in your search terms. The flagged term volume drives Audit recommendations — if Scrub finds 500 contaminated searches per month, Audit recommends increasing negative-keyword coverage. Recommendation: run Scrub monthly on your search-term reports. Export the bulk-negative list and add it to your shared negative keywords list at account level. Build a 'contamination blacklist' in your preferences (words like 'restoration', 'hobby', 'DIY') so Scrub weights those more heavily in future analysis. For OEM campaigns, negative keywords are a structural advantage: competitors often skip negatives, so you are buying cleaner traffic at the same CPC.