I getting back to starting up my truck had some set backs ,
I broke the FRED rule I filled the radiator with coolant before it was ready to be filled with coolant,
The truck boiled over and spewed most of the coolant out so was thinking of filling with distilled water instead of tap until it’s ready for coolant.
I believe that tap water sitting in the radiator for so long crusted up and was part of the reason my water pump started to leak
Thanks