So i've been digging around the internet looking for some kind of pump top that i could retrofit on to the back of the ekwb flt where the Pump impeller sits so i could make a passthrough for a dual d5 top to feed in to it. It has been pretty fruitless so far...any ideas?
Use single pump tops with one pump fitted to the res and the other pump somewhere else in the loop. Obviously additional expense that you could recover a bit of by selling the dual pump top.