Much obliged Stew, that was exactly what I was after.
One is due with me early next week, will be interesting to see how it does, moreso with the 25W 11-16V Meanwell DC-DC convertor bought (on your learned recommendation
) in preparation for use with the now superfluous Aquaextreme.
Only question that still remains is whether there's any advantage to be gained by switching the tubing over to 3/8" ID for a greater sense of continuity/lower total mass of water?