neutokoi
Koi Lover
Jan 4, 2006, 9:57 AM
Post #3 of 6
(1400 views)
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Hi jotb,
Just want to share the experience of using DIY bead filter.....Make sure you buy the beads that float...
Backflushing
In my bead filter, it is not working as what mentioned in the website, when you do a backflushing, the media will not have the 'stir' effect, even when you drain it, the bead has formed like jelly they just fixed themself follow the shape of drum/pvc, most of the debris will not be flushed away (pls refer to the modified picture below), thats why some of the bead filter manufacturer designed a 'cone shape' to ensure the bead will stir (you can google it with "bead filter").
After making some testing, I found out that the easier way to clean/backflush is to drain and then refill/backflush, then we can have the effect like shown in the picture on the right.
Another area, I strongly recommend you to have this bead filter as bio filter instead of pre-filter, it will clogged easily as pre-filter, I ever used it as pre-filter, and has to backwash it every week, then I used it as bio filter, now I only need to backwash it once in 2 months and I am very happy with the performance.
Rgds,
Edo
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