<a href=showthread.php?s=&postid=11116607#post11116607 target=_blank>Originally posted</a> by Sk8r
probably a maxijet 1200 would do it, given a small line: maxijets are very tolerant of on-off switching. Problem is---a kalk reactor's drip line likes to be on the flat relative to the sump: it doesn't climb very well. That's why they call it a drip.
If your topoff is downstairs, can you possibly put the sump and kalk downstairs too? I have my whole support rig in my basement and it sure eliminates a lot of noise. All we hear upstairs is the gurgle of the downflow. I run mine off an Iwaki 100, on a 15 foot rise, and should have gotten an Iwaki 50...way overpowered.
But I believe that if you're only using the typical 1/4 locline drip line from the maxijet, it can make that rise: the bigger the line the harder the climb, and it pushes a 1/2 inch line up 4 feet with no problem.