I'm not suggesting it won't ebb and flow. The issue with aquifers is that as parts go empty and stay empty for long periods of time the sand that stores the wat

I'm not suggesting it won't ebb and flow. The issue with aquifers is that as parts go empty and stay empty for long periods of time the sand that stores the water compresses and then can never be re-expanded to be refilled. There is also the worry about what will happen if we have several "dry" years. All this to say, we don't have unlimited fresh water.