Water Cooling Flushing Question

Hi,

I've had my water cooling system for roughly a week and am totally displeased with my current fluid (FluidXP) so have decided to switch to distilled with a few caps of zerex

What should I use to flush the system out? I'n run distilled thru it a few times but not sure if its cleared all the residue .

i've heard a few people say CLR and hydrogen peroxid but my research has said both these agents cause either corrosion or tinting of copper .

any suggestions?

Thanks

I'd say to unplug the pump's input to plug it in a clean water + antifreeze bucket and put the system's output somewhere else and let this run for some time.