"Cloudy" can mean you have been chlorinating with Cal-Hypo, in which case it may be safe to swim.

"Cloudy" can mean you have algae--in which case your chlorine will be consumed living it unsafe to swim.

Are the clouds white and milky or gray and green?

Don't bother with TA or CH . Both are fine, especially with a vinyl pool.

Your pH is a bit high-you may want to lower it to the 7.2-7.5 range.

I would also strongly recommend you raise your FC level to 15--shock the pool.

You can use bleach, or liquid chlorine. Since your pH is a touch high and your CYA at 30 is good, but on the low side, you can use either Di-Chlor or Tri-Chlor to raise your FC level....both are acidic and will addl CYA. I personally prefer to use Di-Chlor--it's not as acidic, but adds more CYA.

But bleach or LC is our preferred method for chlorination.

Carl