In reply to Paul Udstrand.

I go to the grocery store to buy groceries for my wife and I for the week. I spend $225. You go to the grocery store and buy groceries for yourself and spend $100. Can we conclude that there are diseconomies of scale to purchasing groceries?

Of course not. Because we obviously bought different things in different quantities, so the comparison tells us nothing about whether shopping for two is more efficient than shopping for one.

Your argument is wrong because it is not an argument for the assertion you're making. The comparison you're making has little to no evidentiary value for your assertion.

As for revenue generated from selling water, no, it doesn't help in your comparison because you're only comparing spending, not revenue.