Design for swirl filter based on 200 litre PVC barrel

[DaveOponic]

Does anyone have a good design for a swirl filter?

I am about to experiment with designing a swirl filter using a 200 litre barrel.

I am finding that I have to change tank water every couple of days due to buildup of fish waste and food waste in the tank.

I am presently using a foam filter in one system but it is time consuming to wash the foam and keep the filter clean.

I have tied googling "swirl filter" but have not managed t find aying that actually shows how these filters are constructed.

I would like to try DWC and foam raft grow beds this year and I think the swirl filter would be essential.

Dave

[fishfood]

Try googling Coi carp swirl silters

[DaveOponic]

Thanks FF, lots of commercial filters, particularly the bead type. I have a sand filter on the swimming pool and it has the "backwash" and multiport valve system. I wonder if anyone on the forum is using this kind of filter.

As I plan to buy 100 Barramundi fry soon, I am concerned about having good filtration and water quality. The grow beds just don't seem to keep the water clean for very long. A week between replacing water would be a long time, usually every two days I am emptying 100 litres and refilling the tanks.

Dave

[fishfood]

try this google koi vortex filter

[DaveOponic]

I have found some good designs on the web for swirl filter and vortex pre-filter.
There is an 80 page pdf file available with photos and design instructions. I will post the URL in the next couple of days for anyone else who might be interested. Even though the plans are not for a 200 litre drum, there are enough details to help me work out how to build a swirl filter that will help flush out some of the muck left over in my system.

Dave

[Tsaphah]

Hi Dave,

Have you started building your filter yet and will you please post the URL to that PDF you mentioned please?

Andrew

[DaveOponic]

Hi Andrew


I got some good ideas on the design of my filter from this PDF

http://www.jpgo.co.uk/DIY-Bio-Filter...ri-Project.pdf

I have posted some more photos of my filter in another thread on this forum.

I made two filters and both are working well and easy to clean.

Here's the web site with the link to the pdf above.

http://leisure.prior-it.co.uk/pond.shtml

This web page has some other links to DIY filters.

http://www.mikebentley.com/ponds/homemadefilters.htm


Happy filtering!

Dave

[zeke]

a great website for prefilters

http://www.dankoi.com/

[kellenw]

Thanks for the pdf link Dave! It's an interesting read.

[zeke]

Your welcome..........Guess the cold has you shut down......