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Old 12-25-2004, 11:47 PM   #1
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wet/dry is noisy; can I shout it down at night ?

I have a 75 gallon sw tank connected with an external wet/dry filtration system. The aquarium is in my bedroom. The return pump is very noisy (even if is a Quiet One 4000...) and this make me unable to sleep at night. So the question is: can I shut down the pump off at night ? is there any problem with drying bio balls ? in the morning they still look a sort of wet, but I am worried that the inactivity of the filter for ~10 hours a day may create problems with the nitryfing bugs on the balls. Any idea ?

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Old 12-26-2004, 10:38 PM   #2
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Is the pump sucking air? If it isn't sucking air and it sounds like it is rattling then there is a problem with your pump. The only sound you should hear should be trickling water. Pull your pump apart and look for mechanical failures. My wet-dry filters are whisper quiet except for the trickling. The loudest parts on my tanks are air pumps. On a 75g you should not have a pump big enough that normally produces annoyingly loud vibrations. Shutting off the pump and denying the bugs the necessary food/water they need could disrupt the balance in your tank. Do you have any other form of biological filtration or a substantial protein skimmer? If so you might be able to get away with it. The bottom of the line is, a 75g SW tank with wet-dry should not be annoyingly loud. Is your pump in-sump?My 50g had an oversized refugium/skimmer/wet-dry set up with a 400GPH pump on the wet-dry, the skimmer had its own pump and 2 Rena 400 air pumps and it sat right next to my bed. That is just me though. Be careful!!

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Old 12-26-2004, 11:32 PM   #3
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dont shut it down. figure out what the problem is then solve it.

shuting it down will ruin your tank.
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Old 12-27-2004, 08:49 PM   #4
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Agreed, do not shut it down. My pump is LOUD as well. I have tried several and the Quiet one brand I have now is tollerable. Unfortunately it's the worst part of the wet/dry...........the loud return pump. If you figure out a way to get it quiet, I'd be glad to hear it.

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Old 12-27-2004, 11:32 PM   #5
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thanks for the feedback. This is the situation, I have the pump submerged (Quiet one 4000) in the wet/dry unit. The pump vibrate quite a bit. Is this pump too powerful for my 75 gallon tank ? it is rated 1017 GPH. I had to install a valve to reduce the outflow. Should I buy the 1200 or the 800 model ?.
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Old 12-28-2004, 01:03 PM   #6
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Try to isolate the vibration. put the sump on a piece of foam ... or put the pump itself on something (inert) inside the sump. or both.
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Old 12-28-2004, 02:17 PM   #7
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My Fix

The way I fixed this problem was to cover it with a cop that fit over the heading of my PVC pipe my neightbor actually tought me how to do it and it cut the sound down by about 70% I say give it a try and you should see deffinete results!
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Old 12-28-2004, 02:29 PM   #8
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Fisheye...when you say you installed a valve, it has to be installed between the pump & the tank. If it's installed between the intake & pump, it will be be noisy trying to get enough water.
Most pumps are installed so they sit on the bottom of the sump. You can try to add a polyester pad under it to keep down vibration.

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dry, night, noisy, wet, wet/dry

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