One more thought (sorry to keep dumping ideas on you :p ), if you run a pump externally, use flex PVC or at least vinyl hose for the connections to the pump. If you go rigid PVC all the way, the pump vibrations transfer into the plumbing (and sump) and you get a hummmmmmmm kind of effect. Also a mouse pad works well for under the pump to further dampen any pump vibration.

Flex PVC is the best, works/glues exactly the same as rigid PVC, same fittings, etc. you can pick it up from Western Pump in town. You can also get unions there (although some Rona's do carry unions now - nice :) ).

External pumps are always more noise.
If you want it to be quiet Eheim is the most reliable and quiet, to make a quiet oferflow look up durso pipe

JM2CW

I had read about the flex PVC somewhere but did not know it was readily avialable. I was thinking of using it due to my poor handyman skills but sound dampening makes it a slam dunk. I was trying to think of what I could put under the pump as well. The mouse pad idea is great.

I was going to go with an external pump due to heat transfer as my condo gets warm in the summer. I deffinitly do not plan on getting a chiller but I really want this quiet. Are internal Pumps really that much quieter?

That Durso link has a much better picture then the one I posted earlier.

Thanks,

Jon

Eheim is silent compare to Mag drives and mag drives are quieter then externals.
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