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Posted by JR
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on 7/2/2009, 10:21 am, in reply to "Re: A bit off subject"
64.12.117.75
Break from vacation;
Mike is correct. a sump captures the heavy organics, not the light fines and stain in the water. A bio chamber will not only break down ammonia it will also process oranic material ( hopefully not to the point of biofouling.)
The way a UV works is not an instantaneous kill. It damages the cells walls and DNA which causes green cells to become sticky and adhered to one another. That, in turn, causes them to loose bouyancy and sink to the bottom. The drain then picks this up and delivers it to the sump for flushing as a dead mass that is now too heavy to get to the next chamber.
In the ideal, a UV should be followed by the FF so that the dying cells can be removed by the rising bubbles of a FF which they are highly attracted to.
I'll let Waddy and d take it from here as I look for the suntan lotion---
Cheers, JR
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