I have experienced this also, but since I have that white Berber (again: I have never ever regretted my decision to get that carpet, so if you’re on the fence, know it has been amazing for us), my perception has been that the lighter spot is thecleaned spotwhen using full-strength....
FOLEX INSTANT CARPET SPOT REMOVERREGISTRY OF TOXIC EFFECTS OF CHEMICAL SUBSTANCESTITLE 29 CODE OF FEDERAL REGULATIONSNATIONAL TOXICOLOGY PROGRAM (NTP) REPORT ON CARCINOGENSINTERNATIONAL AGENCY FOR RESEARCH ON CANCER (IARC) MONOGRAPHSCLIFFORD M. CANTRELL...