Air bubbles/Filter

If there was a hole then it would be leaking water somewhere. Unless its leaking into the fishtank. Maybe where the intake tube connects etc.

Let us know what happens. In case it happens to someone else


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How long has the filter been functioning for?


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Where abouts on the filter is the air coming from ? Tubes or main housing ?

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One time. I didn't tighten one or two of the locknuts on top. The next morning i had a lot of clean up to do. Make sure knobs are very tight.
Why dont u call fluval/hagen tomoro. See what they suggest


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Check that the rubber connector for the filter intake pipe is a couple inches below the water line.

Do you have any filter floss in the filter?

Do you have a prefilter on the intake strainer or is the intake strainer blocked by any debris?

I had this issue a while back with mine. Here are the things to check, make sure all your o rings are in good condition. Give them a good coating of plumbers grease to keep them moist. The hose clamps on the valve side are tight. The other end of the hose that is in the tank, be sure that the rubber boots are completely submerged. And the most common reason that it will spit out bubbles is either your filter media is clogged or you have to much media in the trays that it is restrictions the flow of water enough to cause pump cavitation. Not damaging cavitation but enough to create the bubbles that you are seeing.

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