Return Pump question

so a mag 12 or mag 18?

 

Looking at the flow rates (had to convert to UK litres per hour) just to send water through your sump and allow water to be processed IMO a mag 12 would be fine.

 

cool mag 12 it is! u think a mag 9.5 would be to little? i only need the flow to keep up with whats being drained....dont need it for flow as i have great power heads

 

A mag 9.5 would probably suffice, at a head height of 6ft and taking into cosideration bends in the pipe work you should achieve a flow rate of around 350 - 450 gph. This is approx what I run using a new-jet 3000 pump with a head height of about 4.5ft.

 

im gonna save some bucks and get the mag 9.5 thanks phil