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#1
09-25-2012, 11:32 AM
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It's gurgling , I can live with the noise. I have adjusted it to the point where it's pretty close now. But I think I now need to add a float switch for the return pump, and am considering adding a bigger return pump or a second one at least.
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Acipenser 2012 nano contest entry. 
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#2
09-25-2012, 07:03 PM
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Adding more pumps might just make the problem worse, I think you need to have a larger drain with a valve. I had half inch on a nano and it was noisy until I upgraded to 1 inch durso style standpipe.
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#3
10-08-2012, 03:12 PM
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O.k. so I believe I have the problem solved - However I am unsure of the BEST solution. I believe that the return pump is under powered for the amount that the drains are flowing into the sump. I have 2 x 1/2" drain lines flowing into the sump, The Eheim return pump at full volume cannot keep up to dual 1/2" drains. I have fitted 2 ball valves into the drains to dial back the flow. I realize this is the wrong method but it was the cheapest and works to the point where I can adjust the drains to match what the Eheim can return. At this point after 12 hours the display tank level and sump stay the same.
The proper method would be for me to either add a second Eheim pump or 1 larger pump and have a diverted return line with a proper gate valve back into the sump. Thoughts ?
__________________
Acipenser 2012 nano contest entry.
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