Hard to say, but there was a gal on here using dollar store bleach to shock her pool and was having much trouble....the ingredients didn't specify a percentage so it's not clear what was IN the dollar store bleach. Once she switched to a more recognizable brand she was doing better, I assume she hasn't posted any problems....
I'd stick to Clorox, Wal-mart or a store brand you trust, I've used Aldi bleach, Target, Safeway, etc. and the pool store 12.5 % when it's on sale.
There could be other reasons for your cloudy water.
So we can help you better, a full set of test results would be good, as well as your method of testing (a kit, strips, the pool store?).
Hope this helps.