tash
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So the tank I just got came with a HOB filter, a millenium 3000. it was working great at her house, then somehow between there and here the power unit came off. In the instructions it says to remove it for cleaning so I reversed that and tried to put it back on. but when I filled it up it started dripping. I have taken it off and on sevral times but it just drips and drips. does anyone know what the problem could be and how I can fix it?