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Re: Large tank/fluidized bed
As a note on Mark's observations, it is essential to maintain constant
flow through a FB filter. If the water flow stops, like during a power
outage, the sand rapidly goes anaerobic, the biological filter bacteria
die and then you get a major ammonia spike. Same thing will happen if
it gets clogged, thus prefiltering is essential.
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>From: "D. Martin Moore" <archimedes at master_localink4.com>
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>Subject: Re: Large tank/fluidized bed
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>
>> Just to offer another point of view - a friend of mine has a
fluidized bed
>> column. We have played around with it a lot, and have found it to be
a
>> major pain in the butt. If proper flow is not maintained through it,
there
>> can be negative consequences. There are some web sites out there
about it.
>> Can't offer any URLs, though.
>
>I have a flow control valve in front of mine. I've never had to
>adjust it after I got the initial flow right.
>
>
>Prost,
>
>Martin
>
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