I wish I could afford a rotary drum. Those are awesome.
I have 2 Cetus Sieves on my 11,000 gallon pond. They work ok but I have to worry about the 4' deep filter pit flooding every time it rains, if the power goes out. I'm thinking about swapping them out for 2 Zakki Sieves since they are pressurized and can be above pond level.
When you do a project you do it the right way. I love all the thought you put into your systems.
What kind of media do you use in the bio filter?
Is it a fluidized bed filter?
I have heard of a few people using the k1 filter media for media in koi ponds but don't know of anyone personally. I don't have a pond set up for the purpose of keeping koi but more of a water garden with koi in it and I let the plants do most of the filtering for me. My koi are happy and healthy but not what I would consider show quality. With that being said my koi will never reach the size and girth of koi in a proper koi pond like yours. Keep updating this thread as I would love to see the growth of your fish.
P.S. When is that tank of yours going to get water in it.
All matter is merely energy condensed to a slow vibration, we are all one consciousness experiencing itself subjectively, there is no such thing as death life is only a dream which is an imagination of ourselves. Bill Hicks
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ua hua's 90 gal. high tech ua hua's 5,000 gal. water garden
So I changed over the bio chamber overflow to a true herbie split stand pipe system. It is now up and running. 60 micron filtration. drum filter is cleaning itself about every 5-10 seconds the water is so mucky.