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#1
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![]() I'm running a k3 in a 33 right now, dead silent. justinl is right on the small washer thing. There is one inside the main body that the impellor rests on and it comes loose when you clean it sometimes, it does make noise then. Took me a while to figure that one out.
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#2
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![]() I've got two K1's in a 25 gallon and they are super quiet.
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#3
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![]() I had problems with a K3 for a day or so until I found the fix. It was almost like a grinding sound, yet the pump was spinning properly. I did some research on the net and found that sometimes if you get an air bubble stuck in them, they can be noisy. A properly working Korilla pump should not be noisy.
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