"Salinity" salt mixing problems!!

[btuck887]

I purchased a large bucket of "salinity" salt from big als on Boxing Day. Does anyone use this and how do u mix it? Does it stay cloudy?

I have mixed up a few batches and not matter how long I keep it mixing for it stays cloudy, anyone else have this problem? After removing the power head for mixing the water becomes clear but I get a lot of sediment at the bottom of the bucket? Anyone know the reason for this or what I'm doing wrong?

Thanks