Help Needed

[Wolflife]

i just bought a new overflow box
but i didnt know how does i work....
need ur help
http/cgi.ebay.com/ws/eBayISAPI.dll?ViewI...AMEWN%3AIT&rd=1

 

[SkiFletch]

It hangs on the back of the tank with the small box inside and the big one outside. You stick a thin tube up each of those U tubes that connect the two boxes, then fill up the two boxes with some water and suck the air out of the U tube with the thinner ones... This should start a siphon. The fitting on the bottom of the outside of the box should be connected to your sump. When the water level in the tank gets too low, the overflow box will stop it from falling into the sump.