Do return pumps get quieter over time?

[Csalt]

Or have any reccomendations for a quiet return pump less than 300gph? Put a new Eheim 1000 in the sump yesterday and it has a hum to it. Woke up this morning and it was louder.

[ninjamyst]

Make sure it is bot touching anything else. It did take my eheim compact 3000 a few days to quiet down but it wasn't loud to begin with.

[RayWhisperer]

Most pumps are gonna have a hum to them. Especially when they are sitting on a hard surface inside an amplifier(tank/sump). They usually quiet down after a few days to weeks. However, if they are loud enough to wake you, I'm not sure they'll ever quiet down that much.

 

A couple of suggestions for quieting a pump down.

If it's hard plumbed, try adding a short section of nylon, or silicone hose between the pump and pipe.

Try a rubber or foam pad under the pump

Try suspending the pump in the return chamber. If that's not clear, I mean cut the return line shorter, so the pump is actually hanging by the return line.

[Csalt]

I'm using silicone hose for the return. The pump isn't touching any walls. I'll try a pad underneath see what that does. I'll give it a couple weeks and see what happens.

[Csalt]

Put a couple small pieces of silicone hose underneath the pump and it's much better than it was.

[Nano sapiens]

Pumps also get quieter after some biofilm growth inside. Too much growth, though, will compromise the output so it's a balancing act.

[MakoMan36]

If you're using the aqueon tank as a sump then you need to fill the gap between the black trim and the bottom glass with a cloth or foam then put the whole sump on another piece of foam or yoga mat, it'll make your sump dead silence.

[Cencalfishguy56]

Put a couple small pieces of silicone hose underneath the pump and it's much better than it was.

i used a rubber mat and placed it under mine and it's dead silent