Dennis, thanks but my question still lingers. Anyone else know if these sprayable calciums drive up the pH of the spray mix? I could do a test myself but I have no sprayable calcium. Also, stating that a cup of vinegar per 100 gallons is an exceptable buffer is pretty unspecific, especially coming from you (that's what you get for establishing such high standards by way of your much appreciated input). Commercial buffers provide precise info about how much to use to lower pH from level to another.
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