Big_jpb2006

Hi
I have a Marineland 150 this motor is ridiculas its noisy what can i do it make a grinding sound but is working just fine please help if you know how to make this thing less noisy

agabr123

is water coming out of it? try pouring some water into the filter itself, there may just not be enough water in there to get all the air out which is causing the grinding sound

DE88ROX

Your impeller is not seated correctly. Your going to have to pull your intake tube to expose the impeller and make sure the bearing is seated in the little indent on the bottom of the impeller housing. When you re-assemble the intake tube, make sure that the other end of the impeller is seated correctly in that as well. Doing so will make sure that the impeller is "locked" in posistion so it won't move around and thus, cause the rattle. Also what agabr123 suggested. Make sure after doing the above the filter itself is full of water as to give it some sort of 'prime'.


If that doesn't work my guess is your impeller and or bearings on it, went bad. Is this a new set up?

keep us posted and Good luck!

dg512055

I had the same problem. There was plenty of water and the housing, impeller, and tube were installed correctly. I found that the impeller was out of tolerance. The magnet and impeller is mounted on a plastic tube. Inside this tube is a metal shaft with a plastic and rubber cap on each end. The hole through the plastic tube was much larger than the metal shaft, causing the magnet/impeller/tube assembly to vibrate around the metal shaft. I pulled one of the plastic caps off the metal shaft and removed the plastic impeller assembly. I worked some petroleum jelly inside the tube and around the metal shaft and reassembled. This made the filter whisper quiet and smooth. I contacted Marineland/Tetra holding with this problem and they sent me a new impeller. The new impeller assembly was much tighter than the original. I swapped them out and the new impeller is very quiet. Only a very slight hum can be heard while leaning very close to the filter. You can try the vaseline trick first to see if this works. There were no negative effects and mine ran for over a week before I installed the new impeller.

CWO4GUNNER

most filters seem to use the same impeller indent that has a tendency to collect sand, gravel or carbon. People usually don't clean out the impeller cavity or indent when cleaning the filter media and more junk falls into the cavity interfering with the impeller causing scratches on the housing and premature wear until the impeller is no longer efficiently pumping. In addition to rinsing out or replacing my filter media I completely take my filter apart and clean all the surfaces and run a brush snake through the tubes which get allot of slime build up, again using aquarium water not tap water. Then I run my dirty water from one bucket to another bucket through a fish net filled with floss and use the strained aquarium water to flush out the impeller housing making sure all the bits of sand or carbon are removed. Then put the whole thing back together using the more strained aquarium water to prime my filters.