h4rm0nix -If you are looking into these things then you know that the bulb is usually inside of a quartz tube...and some of these units are offered with integral wipers. You pull a handle located at the end of the unit and it pulls wipers along the quartz tube and inside of the housing. Thus allowing water to flush out the scum -in an aquarium application. Sooo if you are concerned with this you might want to look into this type of unit.
Althornin, I hope they are too. We have put a lot of time and thought into this and I think we have something that will be effective.
I am ordering a "Tetratec UV5 Clarifier" today. It offers a 5-Watt bulb vs. the 4-Watt we have studied, and the geometry is similar. I am going to apply your figures to my system WRT volume, flow, watts, etc. -and create a theoretical gauge of the system's effectiveness. But only time will tell if the thing helps or not...
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Jack of all Trades, Master of None.
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