The Model 8000 - Model 2.2B filtration system is an excellent choice for a bead filtration system for larger ponds. The Model AD8000 far exceeds the performance of most all competitive filtration units in it's class. Entering the 8000 class, the AD8000 truly performs spectacularly for ponds this size range.
The 8000 is easily the most popular Aquadyne filter produced. This filter includes the Dynamax air assisted backwash which makes this model extremely efficient in all ranges of waste loading. This unit will efficiently filter 8000 gallons of water with up to 165 pounds of fish or other aquatic inhabitants. Even under the heaviest of waste loading, the Dynamax will break up a loaded media bed with ease. The larger media bed is very forgiving of neglect. You can backwash the Model 8000 with as little as 50 gallons of water. In an 8000 gallon pond you will hardly even notice a water loss.
The AD8000 is also outstanding as an upsized filter for smaller ponds. This is especially useful when filters need to be left unattended for longer periods of time between backwashing. The 8000 can use a very wide range of pumps, single speed, dual speed, variable speed, submersible, low head, high flow or high head. See the "Fuzzy Tech" advisory for specifics about upsizing and pump capacity in the FAQ's.
The Model 8000 is very well suited for applications where ponds or research applications under 8000 gallons need to be heavily stocked. The large media bed allows for an extraordinary accumulation of beneficial bacteria to consume high amounts of ammonia and nitrite. Also works exceptionally well for medium to moderately sized aquatic environments for alternative species exhibits.