Mounting External Pumps

[Bearfan]

How does everyone mount their external pumps. I'm on concrete, so I could tapcon it to the floor, or would I be better off mounting a rubber pad under it for vibration noise. Any experience would be appreciated.

BTW, I'm going to be mounting a Blueline HD 70.

[quarryshark]

Mine are in sump, but I just used some silicon (a thick strip under each contact area) and allowed it to dry. It quieted the vibration down quite a bit.
I think the rubber pad would work nice too.

[klam]

I used an old mouse pad to help with the vibration noise