i have an average of 6-8 inches of aragonite, and of course I hear alot about it being a detrius warehouse. So I pay alot of attention to it. I will never get rid of it, its a freakin thing of beauty, so dont suggest it please. I try to siphon as much as I can. But to do 5-10 gallons I have to add alot of water before suckin it out otherwise I drain my sump in a matter of minutes. Then I have to replace said water with new water. So no salt no siphon. After reading Mike's "Duuuuuuuuuuuuhhhhh" thread, i had an idea. In my sump I inverted a 5 gallon pail and cut off the bottom and put a plastic colleder (spaggetti strainer) on top of that pail with filter media on top of that colleder. That is were my return water falls. Now tell me if this will work. Can I attach my siphon powered gravel cleaner to the top of that "filter in my sump? so that i could siphon until my hearts content. id never have to stop. I could actually siphon my gravel for hours. the problem i thought id meet, was that the sump would fill up too fast for the return pump (700 gph) to return the water to the display. OR would the overflow slow the flow to keep it regulated. Am i speakin english here??