Listen. Stop with all the math-ing. What you do is build your pond, turn it on, BE AMAZED AT YOUR GENIUS and ignore the electric bill. It's just that simple!
A pond will pay for itself a million times over - especially with kids - in the amount of enjoyment and stress relief it will bring you.
A pond will pay for itself a million times over - especially with kids - in the amount of enjoyment and stress relief it will bring you.