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Old 03/20/2017, 09:12 PM   #8
RC Mod
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 87,483
You're welcome!

The BRS products are fine for raising the alkalinity and the calcium levels. I would target maybe 0.5 dKH and 50 ppm calcium for the first dose, and measure maybe 10 minutes after dosing, to see how accurate the dose was. After that, 100 ppm per day is okay, but I might keep the dKH doses slow and spread them over the day, since the soda ash will raise the pH. 1 dKH at a time likely is fine, though.

Jonathan Bertoni
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