Converting a maxi jet 1200 for pump on calcium reactor

[Aquattro]

Chiller line should work as well. I can't see where air is getting in, unless the pump intake is right beside the skimmer output. I use my return line and no air gets in at all. A pump could work, but I'd get a small pond pump over a maxijet. Either way, you'll need to rig up some connection to the pump.