UV Sterilazier/Clarifier Questions

[Virual]

I Installed A Laguna PowerClear Max 5000 UV Sterilizer/Clarifier
PT-1660 In My 450 Gallon. I Have The UV Hooked To 2 FX-5's.
FX-5's Have A Flow Rate Of 925 GPH And The UV Says Max Flow Rate Of 1300 GPH. So With 2 FX-5's The Flow Rate Would Be 1850 GPH. Does This Mean The UV Is Not Working Because The Flow Rate Is Too High?

 

[scorp]

Right, the UV can't work properly at that flow rate. The lower the flow rate, the better.

 

[Repz]

I agree you should generally run it 3x below the max flow rate IMO.