spots

Hey guys, just wondering if there is a way to clean windows with WFP on windows in direct sunlight without spots. Just cleaned my own windows today when it was really sunny and one side of our house cathes all the sun in the afternoon, but left spots when they dried, just checked the TDS of my...

Hi Guys,  Doing this house, inside actually a regular clean. Not windows though.  They've got a window cleaner. But every week we are there and when sun shines I can't look at these big bi folding doors and these 'stained' glass. I'd love to fix it for them but not sure really what to use on...