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Old 03-07-2011, 08:22 AM   #19 (permalink)
TAB
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Default Re: Automatic water change system design DIY

flood.

Thats why I've never liked the fill to have it overflow water change systems.

a much better option is have a stand pipe of a valve in your plumbing so the water will drain down to that point. then you refill. Its what I run on my discus tank. I have a stand pipe that is 12" below the water line on a valve. I just turn the valve, out goes the water.
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