Well Sunday night I learnt a very hard lesson indeed. Picture the scene: Half ten start (night), Black-top Chinese restaurant, greasy and no tea.
Had about 10 liters of Prochem MultiPro pre mixed in a sprayer so I thought I would use this as I didnt want to throw it away and didnt have another container to hand, struggled like hell even with Crystal Green in the HWE, did about half the floor in about 3hrs, then ran out of the MultiPro. So after a trip to the van I mixed up Prochem TraffiClean to max recomended strength, talk about a difference, breezed through the other half in just an hour, it was like a red hot knife through melted butter - so so so easy.
Just so annoyed at myself that I didnt change earlier as it made such a big difference to my workload, nevermind, lesson 8654886 for the books