Just wanted some clarification..
For floating, we wantMagnesium Sulfate Heptahydrate ONLYcorrect?
is ALLMagnesium Sulphate Heptahydrate water soluble or do i need to test every batch before committing to 1/2 ton..
Anhydrous Magesium Sulfate would be a no no i think .. some vendorsare selling justMagesium Sulfate ( notHeptahydrate) which could be something other than what we need correct? ie insoluble or would it be ok to use for floating?
Sorry ..im a noob trying to wrap my brain around all this =)