Ok, take a deep breath and relax...I know this seems complicated but you'll get it, just don't give up!!

First things first--you can take the calcium hardener back. You don't need it in a vinyl pool and with the amount of cal-hypo they have you adding, you certainly don't need to increase your calcium any more. You can also take back the algaecide--the only algaecide we recommend here is Polyquat 60%, and even then only as a preventative, because it's not as effective when there's an actual algae bloom. If it's anything other than Polyquat it's likely to either cause foaming or add copper, both of which will increase your problems, not solve them.

Keep your filter running 24/7 and brush the pool daily while you're trying to clear up the problem. Backwash your filter as the pressure rises. The chlorine is killing the algae, which is why your water turned blue--but the cloudiness is the dead algae that has to be removed by the filter. If you turn the filter off, it won't settle to the bottom, it'll just stay cloudy. In the meantime, post the numbers here that the pool store gave you for Cl, pH, TA, CYA (same thing as stabilizer). You already said your calcium hardness is 200. After we get those readings we can help you further from there.

I will say that you need to stop chorinating with cal-hypo (check your ingredient list for the packaged shock--I bet that's what it is) because it is further raising your calcium. Switch to bleach instead.

If you'll post your numbers we can help you clear it--but throwing lots of things in all at the same time isn't going to get you anywhere.

Janet