UV sterilizer built-in sump?

[Raul-7]

Is this method viable? Seems like a great idea, but on the other hand seems like the flow rate would be too high for it to kill off any bacteria, protozoa, etc.?

 

[KrisReef]

IF there is enough UV exposure it should work fine. One reason they put UV inside of PVC tubes is to shield/shade the light from hitting non-target receptors in the environment. I would presume the reactor chamber in their system is also closed to prevent light leaks?