I recently setup a tank and had some red slime so I got a phosban 150 and a maxijet 400. The maxijet runs quiet when its full blast but I need to slow it down so the GFO doesn't grind. When I do that it starts to have a loud clicking sound. Has anyone else experienced this? Everything is brand new so I don't think the maxijet is broken and when its not being throttled then its fine. I'd appreciate any suggestions.
