Ok so I'm basically not going to get a good UV or know if its working properly?
This has a similar construction and is far less on price that the Wave UV Its supposed to be a good koi UV filter. Its 16 inches longer than the WAVE UV 40 watt:
http://www.amazon.com/Aqua-Ultraviolet-Classic-Watt-Black/dp/B0006JDVSS/ref=pd_sim_sbs_petsupplies_2
Features:
Easy Twist Cap For Easy
Quartz Sleeve Maintenance Just One Cap To Twist For Access To The Quartz Sleeve.
Quick Release T?s For Easy Installation And Winterization.
Lamp Is Positioned In The Housing For Maximum UV Effectiveness.
Slender Housing Design Allows For Higher UV Dosage.
The Unit Is Designed For Maximum Flow Rates.
Easy To Remove Remote Power Supply.
Designed For Indoor or Outdoor Use.