5 hours all in.......travelling included. Although it was only 20 travelling each way. And thank you Dennis, yes it was my first and I did take my time and make sure it was done right.
Yes Chris, diluted one step in a bucket of warm water, rubbing down with a clean towel. Customer seemed happy when they see the white cloth go a muddy colour. Used a fine mist of pre-spray as well but heavier in dirtier areas. Then rinsed with HWE.