Gypsum Calc. Chloride Epsom Salt CaSO4 CaCl2 MgSO4 1.4 4.1 3 TRUE TRUE TRUE 2.0 5.8 4.2 12.75 before sparge stop sparge at 2.5 gallons
Based on boiling 13.75 gallonsliters at 1.044 for 90 minutes, this will decrease your wort by 1.50 gallonsliters, bringing your after boil OG to 1.049. You were planning on an OG of 1.049 so you are right on track. Nice job!