I absolutely would not have the "pool specialist" out anymore. It's a waste of money, especially if one of the things they're adding is calcium!!! That's one thing the vinyl pools don't need, and is notorious for clouding water. I know that we can help you get this cleared up, but like Watermom said, it's going to require accurate testing, and needs to be done with a drop-based kit, not test strips. If you can get to WalMart and get the 6-way, it sells for $15-$20, and will be a LOT more reliable.

Watermom also mentioned that you need to keep your pump running 24/7 while this is ongoing, and watch your filter pressure--backwash the filter when the pressure reads 8 or so psi over the pressure when it's freshly backwashed.

Fire the pool specialist, get a test kit, get us a good set of numbers, and I'm confident that we can get you swimming, for MUCH less than what you've already put into the pool.

Janet