Could you use this same design, lay the jar on its side assuming no leaks and have a SS braid laying down the side of the jar to gravity feed the hopback and that way you wouldn't have to buy a pump?
Primary: Black Storm Ryesing (CPA),
Bottled: Tri-fecta Tripel (8/2010), Aficiando Smoked Bourbon Brown, MurphRYE's Pale Ale
Kegged: Oatmeal Stout, Winter Wheat
R.I.P: Dr. Suess's "Green Hops and Rye" Pale Ale Murphy's Law IPA, Honey-do Hefe 2.0, Power of Pine-Sol, Rob's Brown Ale, Wolfpacker's Wheaties II
Project(s) Completed: Cooler Mash Tun (dual-braid), Kegerator, Keggle Conversion, 50' Immersion Chiller.