Pleco1415
Aquarium Advice FINatic
- Joined
- Dec 21, 2013
- Messages
- 506
About a month ago I purchased a Fluval U4 and ever since I bought it it's been really loud. It makes what sounds almost like a grinding sound or something is caught in the impeller. I pulled out the whole filter and cleaned out the impeller but it is still making the noise. I also put Vaseline on the impeller because that usually helps my other filters but It did not make a difference. Any advice helps. Thank you
