pipe size

I purchased a 80w deltec UV and hard plumbed it into my return line with 3/4 pipe. However with my dc pump rated at 4000 lph was only getting around 900 lph vs around 2500lph before the uv was installed. Ok I figure a larger pump is needed. Purchased a dc pump rated at 12000 lph thinking it...

Hi all, so smy 525XL that I am attempting to give a good clean out to is going well in the actual tank itself, not so underneath as yet, but I thought before I get to far ahead, I should just check for any leaks. So I filled the overflow box in my 525xl tank to see if no 1.) the 3 pipes that are...

Hi I'm setting up a bean animal to an aquarium with a return pump 8.000 GPH what size of pipe should I need to use? 3 x 2"

The time has come to re-plumb my return pump to make better use of space in my sump... Did I read somewhere once that there was a recommended length of straight pipe on the pump outlet before adding any bends to aid efficiency? I know on the intake there should be at least five times the...

I've been looking all over for information on this, but how is everyone running their sump return? I mean, what size and type of bulkhead are you using, and what plumbing are you using in the tank to direct flow and the such? I'm using 1 1/4 inch pipe from the DT to the sump in a Bean Animal...