I actually downloaded this PDF on the turbo twist heregnatster said:Run a 15W Aqua UV on the 120 and have had nary an issue in the almost year it has been setup. Have the one with a wiper, makes makes bulb cleaning very easy and probably helps in the long term with efficacy. I keep the flow a little low to increase contact time, just a personal theory that it helps keep more of the bugs down.
It explains that different flow rates kill different things. Seems that lower flow rates kill parasites and higher flow rates kill bacteria and flow rates in the middle kill algae. I don't know if the same thing goes for the Aqua unit, but I don't see why not. This leads me to wonder, what the heck you do when you want to kill all three?