well thats good then if you have no air and no visable leaks i would say that its good to put on the tank.
yep makes sence to meOh, and I think I figured out why I am to put the outflow one in the tube of my UGF...I think this way it sends all the "filtered" water down and under the rock causing the rock to become like another filter before it goes back in the tank itself...does that make since?
Ok, so what do I do to make it fit "snug"?It would be best to make the output hose that feeds the UGF fit snuggly on the lift tube. Just siking it down the lift tube will allow some of the water flow back up and decrease the RUGF flow...