Quote Originally Posted by richardphat View Post
Honestly it is overkill for the typical filament, but it is cool and nice to have.
There should be a warning with this set up, it will wear out your electronics faster as you must provide more current in order to keep the right temperature.
The pump provided is a fish tank pump and you can't really control the flow out of the box that is the problem.
The flow shouldn't matter. The issue I see here is that he doesn't have a way to dissipate the heat in the water. Long prints may present some issues without introducing a small radiator. Interesting idea, but I completely agree, this is overkill and adds unneeded complexity to your build.