US Patent 7731841 Flow control systems and methods for artificial ponds

An aerator system for an artificial pond comprising an aerator housing defining an aerator chamber, filter media arranged within the aerator chamber, and a control valve assembly. The aerator housing defines first, second, and third aerator housing ports. The filter media defines first and second portions of the aerator chamber. The first aerator housing port is in direct fluid communication with the first portion of the aerator chamber, and the second and third aerator housing ports are in to direct fluid communication with the second portion of the aerator chamber. The control valve array is operatively connected to the first and second aerator housing ports and may be configured in a first mode to allow a portion of the water flowing through the aerator housing to bypass the filter media.