Gro Tech Calcium Reactor

[Ruth]

Does anyone have a Grotech Calcium Reactor? I finally got mine on line (Thanks Wendell at OA for putting it together for me) and cannot find anywhere that it refers to the rate you should have the water output going back into the tank (or sump in my case) from the reactor. It has a degassing chamber that the water goes through first and then into the sump. Right now I have it set for a steady thin stream but just wondering if anyone has any experience with them.