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Biofilter
Hi group - I have several questions that I post to my local group and
got little or no response. Perhaps the fact that I might actually see these people at meetings make them less likely to just venture a guess. In any case I would greatly appreciate your ideas and opinions. Thanks in advance. 1) Amongst the many things I don' really understand is filtering area and gph. Is there a rule of thumb as to how fast you run your pump. I saw one filter (55 gallon I think) they said they turned it down to about 200 gph for 1000 gal pond. Other 'sources' frequently say turn you pond once an hour. Many seem to put much more emphasis of filter area than flow. A local told me when I put in upflow sink filter(very big around here) , my outflow looked about right. It was probably only about 2-400 GPH and was definitely no where near 800, which is my pond size. My box filter and many advertised say they are for ponds up to 1000 gals but max flow rates 500 gph. Another local answered a 'how many fish can I have post' as being primarily an "is your filter working" issue. ie-If Ammonia etc start to rise take out fish or add more filter. Almost never hear anyone say turn you pump up or down. I know there is no pat answers or formula but a clearer grasp of the concept might help my pond keeping and attempts to upgrade filtration. Thanxx - Bill Brister |
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