great brand good sugar

I use about 3000 lbs per year in my shop and I buy 20 bags at a time ,the bags leak and it has lumps ,when Sams has its store brand or Domino Sugar it can stay for over a year stacked under the Imperial sugar and it does not get lumps and the bags don't leak

I buy this because for a whole month I will not need sugar in my house if I have it. And I keep buying it like this, plus the price of it is so great...