So. Recently upgraded from a mash and boil all in one, to one with a pump in the base. Most of the instructions for the units with the pump say not to run the pump during boil. I guess because pressure + 100c liquid results in pump cavitation. So I measured the volume of the liquid (just water while testing) in the pump and piping and got about 300ml. So, after mashing and getting into the boil, there’s 300ml of wort not getting ‘cooked’ during the boil. And I guess the pump is not being sterilised during the boil either. So, disregarding the instructions I decided to run the pump during the boil for 20 seconds or so every 5-10 mins. Been doing this for the last few brews with no ill effects or apparent cavitation in the pump. is this necessary or should I stick with the instructions that say not to run pump during boil?