Return pump and UV

[pgordemer]

I have a 90 Gallon Reef Ready AGA Tank, and a Aquaclear 200 sump below the tank. My return pump is a Mag 7 that also passes through a turbo Twist 6X (18W). I figure with about 4 feet of head going back to the tank and the 3 90 degree bends on the way back the flow rate is probably about 450 into the tank.

Is that too fast for the UV? Should I use a smaller pump? I would rather not have 2 pumps. I already have a mag 5 feeding my EV120 Skimmer in the sump?

What can I use to measure the flow rate?

Thoughts? Ideas?

Thanks
Phil

 

[bertoni]

That's a bit high. You could use a T and a ball gate to send part of the return through the UV unit, I guess. I'd probably use a smaller pump, like an Eheim 1250.