One of these
was the first thing that I thought of when I read your post.
The thing about UV
is that dose = intensity * exposure. You want anything in the water to be exposed to your UV
light as long as possible. If you have a faster current running through your UV
unit, it's not going to work as well as a slower speed at the same UV
wattage. So, less piping/less effective UV
, or more plumbing but better UV
results. Mull on that a bit. There's not really a right answer, but it comes down to preference.