[mseepman]

Thanks for responding. I am using up the last of my BRS Soda Ash in my latest batch and I mix it as per their directions, 2 x 8oz cups for 1 Gallon of RODI water. My Doser does 1.1ml per minute and I dose 11 minutes every hour.

I haven't tested Mag in about a month but I was at 1320 last time I tested. CA is currently at 500 and I've cut back on the doser for this. It was maintaining at about 430-440 for the longest time, but something has changed and my CA went up over the last month.

I use a Kalk stirrer with my ATO but due to how it needed to be setup, very little of my ATO water goes through it (about 10% at max) while the remaining 90% is pure RODI.