Icecap uv sterilizer 27watt

[geko522]

I can't seem to find solid information on setting the flow rate of my uv sterilizer to control algae. Should I follow the manufacturer instructions? Some say they are B.S. not sure what to do. Right now I did the bucket method and filled a one gallon jug and it took 8 seconds. I have 4 feet head pressure

120g - 60x18x25
40g breeder sump
Icecap uv sterilizer 27watt

 

[KrisReef]

Put the UV on and see what the tank looks like tomorrow. What kind of algae are you dealing with?
If it’s green water the UV can help that.