Getting tired of my Eheim - ideas?
Was your intake or output tubing bent to slow flow in or out because that will cause constant air and this noise..... Sorry eheims are the best filter on the market hands down. You should get with someone in your area and see how they clean and prime there unit. I disconnect drain it clean it will it up lid it connect hoses open quick connects plug in and suck on the output until flow goes good
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