Koi Pond, Fish Pond & Pond Filtration Design and Installation - WQS Blog
Koi Pond Filters
GM Vortex Filter - Small - Vortex Filters
Basic Filter Types Pump Fed Vortex Filter System A vortex is used to settle out waste products and heavier solids. Water is injected along one side to induce a whirlpool effect called a vortex. This encourages the heavier solids to sink and the cleaner water to ...