40 gallon breeder pump

[Amstar]

Right now I have a MAG 7. However when I open up the valve for the UV lamp I have it doesn’t push enough water to the tank and I have to almost close my valve from
The over flow into the sump

any better pumps out there for what I need (flow and t-off to the uv)

 

[sunken3]

lifeguard quiet-one. i have used those for all sorts of situations