I am using the pan world Model 250PS , 1900 gallons per hour. It is only pushing up roughly 10 feet, so I built a manifold on the return, with some water going back into the sump, and some going back to the main tank, otherwise, the tank could not drain fast enough and it would overflow. In the future, the line that goes from the pump back to the sump, will have a media chamber and a uv sterilizer connected to it then to the sump, i just have not bought them yet.(I have started to run out of money)
I am using 1" spa flex for most applications, except the drains, which have 1" spa flex to the floor, then a reversed reducer at the floor to go to 1 1/2" hard pipe into the sump, into a 30" or so filter bag.
The closed loops right now have just the bulkheads, ball valves, and unions, ready to have 1" spa flex installed and a pump. How quiet are the blue line pumps? and how hot do they run? Ideally, a pump that runs cool, is quiet, and has good gph is what I am looking for, as I am sure that is what everyone is looking for.
I ask so many questions because i spent a bit of money for my 45g system, and ended up finding out that almost none of it was for saltwater, so i spent more to set it up the way I wanted it. I do not want to make that same mistake again, I have been reading everything I can find and asking a lot of questions. There is no one better to ask, than those who have already done it. That is why i like this sight so much, so many people here just do not know how important they are to others successes in reefing.