It runs you $20k here too (well, the hole plus the pump plus installation is about 20k) but still pretty much everyone does it, because it's so dramatically mor

It runs you $20k here too (well, the hole plus the pump plus installation is about 20k) but still pretty much everyone does it, because it's so dramatically more efficient that you're going to make that money back before the pump is toast -- and when it is, it's much cheaper to upgrade to a new one because you already have the hole ;)