I could under stand this being done on a Romahome even with the big green stickers on Water only......but today i took a peek in the Practical Motorhome magazine in Sainsbury.....and a letter from a reader .....he went into a garage.and said to his wife can you fill up while i do the screen wash........yes she did!!!!!!32 Lts of finest diesel in the fresh water...........apart from Divorce...he asked have i any other options ...........they replied it is a big big problem....not easy to cure .....a lot of the romahomes have the water above the diesel ..............but not any more.....its like the C15.........front left............Mark