hi has anyone used Eclipse HD, its a heavy duty degreaser, (purple in colour), I bought it a couple of years ago to do a concrete floor at a car parts factory that had lots of oil on it, worked well, cant remember what company I bought it from but described the area I needed to clean and the size and was sold 6 x 5 litres, only used 2 of them , so was oversold quite a lot, im not bothered about that but have no Idea of the PH, and was wondering if it is suitable to clean tile & grout Flooring, I have 20 litres left