I am using a kalk reactor on one tank with a metering pump to drive a nice slow driprate.
To be honest I'm not that super hot on the reactor either.
(When did I become so high maintenance? WTH??) Three reasons: 1) Back in 2003, give or take, a bunch of us Canreefers bought a ridiculous amount of Mrs Wages pickling lime. I've been using the stuff like crazy trying to use it up but I swear it reproduces when I'm not looking because I have yet to finish the stuff!!!!! Anyhow, it's nice and good for 2 weeks or so then, 2) it turns brown and coats the inside of the reactor with its browny grossness. Vinegar cleans it up nice but .. well, it's just another chore to ignore.
And 3) the thing eats Maxijet impellers like crazy. Must be a design flaw, I'm not sure, all I know is I use a MJ600 or MJ900 on it and have to replace the impellers on them every few months.
I'm hoping I can finish those pickling lime jars soon and switch to a nicer kalk mix at some point. Sort of like how I'm waiting to use up my 5g bucket of CaCl from Chemmaster before I do a BRS order of soda ash (figure might as well buy both at the same time). I'm good and logical that way.
