Not sure if it's an option where you live, but I'd look into a geothermal heating and cooling system for your house. Mine uses ground water and then dumps used water into my pond to help keep it full. Essentially your heating and cooling keeps your pond full. At the time I did it there was a 30% tax credit for all costs associated with the set up of a geothermal system.


Just a Pond Boss 'sponge'