I am new here. In fact this is my first post, and I am new to sportbike racing. I raced motocross to put myself through college then raced outlaw sprint cars. In both we usd water wetter. the sludge happens if it gets mixed with any antifreeze. De-ionizign does not remove the metals form the water, make sure you use the distilled stuff, and doubling the dose doesnt hurt, if anything it makes the water pump last longer.