2 return pumps?

[davocean]

Some of you guys are running way more flow than needed for returns unless you are splitting it off.
3-5x turnover is a good target for sump return.
More increases micro bubbles, and less dwell time for skimmer.

 

[reefsurfing]

The new Water blaster 5000 is an awesome pump

HY5000W
* Watts: 60 watts
* 97% efficiency
* Max Flow=1,300gph
* Max Head=11 ft

this is what I would go for!

If you use Davoceans logic go for the 3000

HY3000W
* Watts: 37 watts
* 96% efficiency
* Max Flow=750gph
* Max Head= 7.5 ft

 

[GlenG]

BeanAnimal is correct, larger centrifugal pumps used for building HVAC systems show these pump curves with power usage. You dont see these charts or graphs in the aquarium industry on small fractional hp motors-pumps. It is always fun to explain to techs that the amperage draw decreases when restricting flow to a pump or restricting it after, decreasing the load on the pump. The new tech always thinks the pump works harder, the opposite is the correct answer.

 

[Harry_Y]

I regret only using 1 return pump on mys system