Just thought that I'd let you know that having a level 5 engineer onboard a vessel with a water purifier and 3 other kerbals (total 4 kerbals), creates a situation where you are generating more water than you are using. Is this a bug, oversight in the numbers or intended feature?
I mean, having bonuses for leveled kerbals is a great idea, but this seems like too much. I installed a life support mod for realism, and then infinite water. Must be a mistake, right?