The diagram below shows a top view of different shapes that can be considered self cleaning.
Pond filtration system diagram.
A biological filter works like a mini sewage system for the pond.
Bioball diy pond filter.
In simple terms the media within the filter creates a huge surface area which becomes home to many millions of helpful bacteria.
Gravitational diy pond filter.
Bio clean pond filter.
You can put together a surprisingly capable pond filtration system using commonly found household tools and a few components purchased from your local aquarium supply or pet store.
For under 50 you can build this effective bioball filter system that can easily filter and clean up to 300 gallons of water in a typical garden pond.
There is less regular maintenance or cleaning required since the aerobic bacteria eats the waste and cleanses the water through.
The jets are positioned to flow the water along the perimeter of the pond walls.
Notice the placement of the jets.
The biosteps 10 pond filter is the number 1 choice for koi ponds up to 1000 gallons and water garden ponds up to 2700 gallons.
While there are commercial pond filter systems you can purchase many people choose to build their own to save money.
Saved by paul chay.
Gravity does all the work for you and less than 20 buys all the needed parts to assemble this water filtration system for a diy koi pond.
Up to 5000 gallons.
This simple biological filtration process uses a gravity flow design that eliminates all moving parts from the filter and therefore removes common points of failure.