Meanwhile, solids such as large fish waste and pond debris collects in the conical sump at the bottom of the filter. It will be periodically flushed out via a ball valve. The filter can easily be incorporated into a waterfall or hidden behind a waterfall by using the molded on spout option. Simply firmly support the level filter and allow the water spilling out of the spout to flow into your rock waterfall. Use some liner under the waterfall and make sure the liner extends all of the way down into your pond.
More details are available with the purchase.
The filter can be mounted on a cement slab,using the optional stand, or may be partially sunk in the ground. The recommended filtration media is pea gravel. This will allow excellent clearing action at anywhere from 20 to 50 gallons per minute per unit. The filter can be used as a single unit or be installed in parallel for ponds larger than two or three thousand gallons. You can use it without the heavy duty grate as up-flow filters with plastic ribbon filtration media, etc.