Pump vibration

[MagicTex]

Hi all....
For my first post, I hope I don't have a stupid question !
I installed my sump, finnaly achieved to stop all bubbling, and overflow noises, and now I can hear vibrations in my submerges pump !!!
The return pipe is 1m60 long, and flexible pvc... When I put the end of the pipe at the same leven than the pump, there is no more noise...

Can you help me to solve this ???

Thanks to all

Tex

[reef-man_d-man]

sounds like its all about pressure, however you might try and pump something soft under the pump and see if that help.

[MagicTex]

Hi,

thanks for you answer, I tried already using blue foam/sponge and it didn't worked. I tried to hang the pump with rubber, and the noise was still there...

Tex

[SandFlea]

My intank pump was doing the same thing. It tried several different things to try to correct it. Apparently it had some air in it that was causing it. I am no expert by no means. Just one of my experiences