you fellows speak of pump "power", and I believe are confusing the issue
you have high volume, low head pumps,
for sure they will be crappy with the high flow resistance of the Maze2
you need, as has been stated over and over, high(er) head, low(er) volume pumps
-> then the pump is able to function as designed, and will also input less heat into the coolant
that such may be more expensive, so ?
perhaps then it is cheaper to change the wb ?
compare the P-Q curves of the Eheim 1250 that RoboTech describes to the VIA Aqua 306
I don't have these curves but can predict the difference
because a pump has high volume at low head does NOT mean that it is "powerful"
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