just set up a sump Question on filling with water

Hey everyone i just set up my oceanic sump and i was wondering should i fill it with water by pumping from my tank into the sump or should i pump some from my tank and put n new buckets of water to fill the sump the rest of the way and fill my tank the rest of the way ?

sorry if thats confusing i hope u understand what i mean

help ASAP cause its getting late and im reall tired and i gotta finish watching them EAGLES

 

ohk so make shure tank and sump are filled at desired level then crank it on????

im just wondering cause if my tank is filed to the top and the guy at the LFS said fill the sump so theres a inch and quarter room left at the top, i just thought that something would overflow but he said no the sump will go down to a level of water that i will need to keep it at at all times

does that sound right ?

 

you might also want to unplug the return pump to see how far the water will raise in the sump, and if is going to over flow and make a mess in case there was a power outage

 

i am using a backflow, so have my tank filled and the sump to 1-1/4 and turnd it on and ill be good???

 

hahahaha thanks......sooo i turned it on and the water was pouring into my tank fast so i turned it off but nuthing was going back into the sump.

Now i have a power with and are tube hook up to the air nipple of the back flow but the water isnt going up over the hump of the bak flow down to the drain hose

what should i do ?