triangulum33 Whenever it feels right! HBT Supporter Joined Oct 20, 2009 Messages 665 Reaction score 19 Location NorCal Nov 14, 2011 #1 I need 5 grams Gypsum in my water. What is that in tsp?
B Brek81 Well-Known Member Joined Sep 13, 2010 Messages 181 Reaction score 5 Location Indianola,IA Nov 14, 2011 #2 4 grams per tsp http://www.howtobrew.com/section3/chapter15-4.html