External Pumps

[mark]

Could be wrong but thought the Snapper (and Dart) were more of a CL pump than some of the other Sequence pumps. Another thing is the size of inlet to deal with (2") as usually don't want to restrict a pumps inlet (okay the outlet). The other small Sequences series are 1.5" inlet.

Other thing is your overflows, what are you good for there?

As for your question re: noise, I've got a Dart (just a like bigger than the Snapper) directly under my tank, it's quiet but not silent. During the day one doesn't notice it but as I've written before, once the kid's in bed, TV off you know it's there.

Here's a good pump list from RDO and a head loss calculator from RC that allows you to find the flow with different pumps.