Pump dilemma ? I would appreciate any ones in sites

[DKoKoMan]

You don’t want too much turnover in your sump. The larger pump is great if you have extensive horizontal and vertical runs.

[babnika]

I have a150g sump now & will turn my 180g into my sump. Over 2/3 will be refugium running Triton system. Shooting for 5 times the display turnover. Think it best not to max out a motors rated capability. I like the flexibility of being able to ramp up the flow rate to be able deep clean my tank & remove suspended particles.
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[babnika]

I am away from my tank usually between 10 days possibly a few months this winter & by running two pumps at 50%then if one goes then I can bump up the other to 100%.
Until I can get home or have someone that I deem capable of swapping out my pump. I find larger motors to make less noise at 50% then being maxed out. Will be close to 11 feet of head presser.

[babnika]

I also think having an oversized pump running at slower speeds will reduce heat of its components making it last longer. Just my thoughts I could be totally wrong though.

[smokinreefer]

Originally Posted by babnika

I also think having an oversized pump running at slower speeds will reduce heat of its components making it last longer. Just my thoughts I could be totally wrong though.

That seems to be best practice, running a pump at less than full output.