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New filter design
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Posted by dfinn England (My Page) on Tue, Aug 23, 05 at 13:31
| Hi,
I plan to build a new filter as I feel my current single box filter is very inefficient. The new filter will still be a box filter but will have different media and layout.
My current filter is an ecocell 2200 by hozelock I cannot decide whether to use the box from this unit for the new filter or get a bigger one.
Anyway here is the deisgn.
www.djfroadshows.djworld.org.uk/filter.JPG
PLease can I have your feedback on this design and ways it can be improved. It needs to be as cheap as possible. Also if anyone has any pond stuff for sale/ donation that i could use my email is danielfinn111@hotmail.com
Thanks,
Daniel |
Follow-Up Postings:
RE: New filter design
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| Bigger is better, if you get the chance :-D Also, are you planning to add a drain outlet, for easy removal of the goo that will collect at the bottom? |
RE: New filter design
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- Posted by AJC_1 8 the fens (My Page) on
Wed, Aug 24, 05 at 8:57
| Jap matting normaly appears before the biomedia, its a part of the mechanical side of filtration, as it is your media would be clogged up in a week, the brushes only stop the larger particles and you have nothing between brushes and bio media, adding a bottom flush is a very good idea, saves a lot of work. |
RE: New filter design
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- Posted by dfinn England (My Page) on
Wed, Aug 24, 05 at 10:04
| Hi, What media would you reccomend? I thought Jap matting would be used as a bio media due to its heavy aeration requirements. Thanks, Daniel |
RE: New filter design
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Hi Daniel,
You can use Jap mat as biological media, you don't actually need to use anything else, however, some people prefer to have a variety of media. In my opinion the easiest way to construct a filter is to use a vortex first to remove a lot of the heavier particles, and then let that flow into your jap mat chamber where the biological part takes place, and then return from there to the pond. Use a grid for the jap mat to rest on and a drain valve underneath it is a must. It takes a long time for the matting to get going, but once it does it works very well. It is also worth investing in an Ultra Violet Clarifier.
Good luck,
Geoff |
RE: New filter design
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- Posted by dfinn England (My Page) on
Wed, Aug 24, 05 at 17:40
| Hi, So a 2 chamber system would be good? on for settlement/ vortex and one for biological filteration? Thanks, Daniel |
RE: New filter design
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| I bought 9, 8 by 16" black knight filter brushes for the mechanical part of my filter and they do a very good job. I do have a layer of sponge in the top of the first biological filter barrel but this doesn't get to dirty. I do drain the biological barrels every now and then as a bit more stuff settles in them. |
RE: New filter design
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- Posted by AJC_1 8 the fens (My Page) on
Thu, Aug 25, 05 at 9:54
| filters work best if they follow the basic design, filters have been made and betterd for 30 years, but the designs that came after 10 years are still the ones that are followed closest, some are veen unchanged, to my mind following the vortex, brushes, jap matting biomedia sequence is still the most effective and efficient way to filter a pond, even with out a vortex the sequence is hard to beat, the brushes and jap matting before the biomedai virtualy ensure the biomedia is kept free of clogging, with exception of a light mulm that you will find in every filter, there are few exceptions when a slighly different design is needed, but time and experience of your own needs will point you to those. |
RE: New filter design
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- Posted by dfinn England (My Page) on
Thu, Aug 25, 05 at 10:58
| Hi, Where would I house the media. would you put brushes in 1st chamber and then in the 2nd chamber japmat followed by biomadia? Is it still ok to aerate the jap mat? Thanks Daniel |
RE: New filter design
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Hi,
I think you have answered your own questions Daniel. The order you have put is the norm. Aeration is a useful addition to any biomedia. Here are some useful links. http://leisure.prior-it.co.uk/build-diy-pond-bio-filter.shtml
http://www.fishdoc.co.uk/filtration/koi5flow.htm
http://www.kockneykoi.co.uk/productpages/f18000v.htm Geoff |
RE: New filter design
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- Posted by dfinn England (My Page) on
Tue, Aug 30, 05 at 15:16
| Hi, Thanks for the links but ive completely changed my mind and decided on a skippy filter for now. Thanks, Daniel |
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