Quote:
Originally Posted by BlueAbyss
OMG I think that may solve my problem with fluctuating sump levels  I like this drawing! I need to figure out a way to make an area that doesn't fluctuate with surge but still lets me know when I need to top off... not sure if this would do that, though the water level in the lower chambers should never change which in itself could be useful. I like the concept though, and will likely apply something like this in my seagrass build 
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Have you considered using the flow from the pump to do the switching?