Hi Kevin, Yes I will admit I have a total aversion to high alkaline based cleaning chemicals as from my experience over the years I have seen first hand the detrimental damage these harsh chemicals cause to surfaces from continuous use, I had been using them for many years myself and put my hand up before on this forum admitting that I caused damage to my own clients surfaces from using high alkaline based cleaning chemicals. When I see contractors mopping floors with cotton string mops and high alkaline based floor cleaners it dose my head in, because they are not cleaning them but actually dirtying them, as the cotton mops just push the soils around the floor and then the high alkaline based cleaner which is caustic and corrosive just grinds the soils further into the substrate, this happens on a daily basis to compound the problem which in turn leads to hard floors becoming black with the dirt which is one of the biggest problems in our industry, not to mention the amount of safety floors I have seen damaged beyond repair from continuous mopping with high alkaline based floor cleaning chemicals which just chemically burn the substrate. When I joined the industry in 1982 no one warned me about the damaging effects of using high alkaline based cleaning chemicals not just on floors but across the board for example TFRs which are also high alkaline based and I don't even want to go into the damage that these harsh chemicals cause to exterior and interior surfaces of vehicles again I repeat from continuous use, anyway enough of my rant and Kevin trust me I am not trying to knock you personally, the advice I am sharing from my experience is for the benefit of the newer guys coming into our industry as its important to share our knowledge to help them along the way, with todays advances in cleaning science there are plenty of janitorial suppliers in the UK who are promoting safe and effective cleaning solutions which will clean surfaces safely without causing the detrimental damage caused by old school technologies like high alkaline based cleaning chemicals.