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I have a MIDWest Sulfur Denitrator and no longer need it, was wondering if there is any way to convert it to a calc reactor? They look nearly the same on Midwests website. Has anyone ever tried this before?
I used a calcium reactor as a sulfer denitrator, but I haven't tried using it as a Kalk reactor (did you mean Kalk or Calcium?). Our Kalk reactor has a stir pump and feeds fresh water into the bottom of the reactor and then the kalk water comes out the top and is sent over to the sump. Do you have links for the two reactors that you're talking about?
My Sulfur denitrator worked wonders on my tank, thankfully I got the nitrates under control with a dsb and refugium. i always had to play with it, kept getting that sulfur smell.