experienced input required..

[jakekersley]

I have a 8x2.5x3.5 tank with a 4ft K1 sump.

I'm currently researching what sump pump to use?

I have found the following look promising.
Sicce Multi 9000e Electronic Pump

http://thereefshop.com.au/index.php?main_page=product_info&cPath=14&products_id=1784

or

Tunze Silence Pump 11000L/H

http://www.thetechden.com.au/Tunze_11000l_h_Silence_Pump_1073_110_p/1073.110.htm