Sorry for repeated question but what to use when flushing cooling system out?

[DeBordEngineMan]

Hello guys I was getting ready to go ahead and flush out my cooling system tomorrow have read previous posts just wanted to know what is the best product out there in your opinion? I have read about CLR, Drano, Evoporust, vinegar, muridic acid, simple green, mean green the list goes on and on or just use plain water, if you used a acid based product would you not have to use a neutralizer afterward and what would that be? I have also read to let it set for a few minutes to over the weekend looks like you would have to be careful with it eating away gaskets? Well just wanted to hear from some of you that have done this before I don't want to harm my engine or radiator so if I could get some advice it would be most helpful. Also I thought that I might use pressure washer to help blow anything out if this would not hurt anything? Thanks Robert DeBord