[BigJPDC]

what a noob I am - sk8r answered my questions and I must have skipped his post. I know that you can't mix calcium and buffer, tripped over my own words there. I will have to log my evaporation rates and see about this.

Sk8r - does your t-o reservoir empty itself completely? The reason I am asking is that the mj1200 I am using as a t-o pump can't possibly get the last gallon or so out, so I replace the water when it gets near that point, roughly 5-6 days. So if I added five days' worth of buffer but all the water wasn't gone after five days when I refilled, wouldn't I be creating a super concentration of buffer in what is remaining?

If the proper thing to do is empty and rinse the container before refilling, that is probably more work than adding buffer each day.

Thank you, this has been killing me for a little while now and I appreciate your input!
jp