Convertible Bond Financing as an Optimal Capital Structure

A filter system for a pond system. The pond system comprises a pump vault arranged such that unfiltered water in a pond flows into the pump vault, a pump, and a pump vault cover. The filter system comprises filter material adapted to remove impurities from unfiltered water to obtain filtered water and a frame structure connected to the pump vault cover for suspending the filter material within the pump vault. With this arrangement, unfiltered water first passes through the filter material before entering the pump. The filter material is removed from the pump vault for replacement and/or cleaning by removing the pump vault cover from the pump vault.