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Unread 11/17/2004, 01:38 AM   #6
rsman
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Join Date: Oct 2002
Location: Calhoun, Mo. USA
Posts: 2,239
not really

well ok not realistically

as for power failures your tank will be in trouble before the denitrator, though its effectiveness will drop quickly it doesnt become "dangerous" for 4 or 5 days or more depending on volume of the bioball chamber. reverse flow wud be bad, but also not dangerous, it shouldnt be setup to return under water, it should always flow or drip from an elevated point into the water, this does a few things but first off it removes the temptation to not check up on it every now and then, it also adds o2 to the water fairly quickly the water will be trying to give off co2 and "suck" o2 in.

bypass well that depends on plumbing, check valves no they are not required and only add problems, pre filter things (whatever really) are a good thing though


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