You’ve got to give it to them, the companies presently running these wonderful marketing campaigns. They hold seminars that lure in the landscaper and other entry-level pond builders and convince these innocent people how simple their product is to install and "teach" them what an effective job their product does. Their product is the handy-dandy all-in-one filter / skimmer / pump combination. Just dig the hole and line ‘er up with the pond and your job is halfway done — And it’s affordable!