Clever sod, I hope thats what you use. Aslong as you stick to magura royal blood or water, then you should be ok. The De ironised water is just what is put in some car/ forklift batteris, halfords sell it I believe. You wont feel any difference than normal water though. Good way of bleeding is to use 2 syringes, 1 at either end, then push the fluid through (think thats how we used to do it lol.)