may nabibili na nasa blue na bottle i forgot the name it can take out water stains nakakapagod at tiyaga ang kailnagan pero worth it cya. pero i suggest that you leave your windsheild alone kasi if ever na tangal mu yan magaspang ang performance ng wiper mo baka magasgasan pa at baka msira ang balde mu at motor. What i did to my windsheild when rainy season wash it with JOY at lagayn mu ng Joy ung washer reservoir mu at kahit mahina ang ulan na mahina na almost wala keep your wiper on intervals and spray mo minsan minsan mas effective un nga lang matagal pero safe ung wiper mo