You'll last longer without food, than without water. Where I live, there are no (working) watertowers anymore. It's all pressure by pumps. I'd hope they survive

You'll last longer without food, than without water. Where I live, there are no (working) watertowers anymore. It's all pressure by pumps. I'd hope they survive, but am not so sure. Where would their electricity come from in such a situation? The fuel for the emergency generators? (Do they even have them? Again, not so sure.) How long would they even last when running 24/7? I wouldn't want to drink any unfiltered water here. At least not without some filtering "straw", Katadyn, or something similar. And they don't last long either. So you need packs of those, or at least their filters.