With the TA test, it is normal to get the sample to flash to the pink but then return to green when you get near the endpoint, but you're not at the endpoint until one more drop doesn't make any color change--and then you don't count that last drop. So Looks like your TA is more than 320, which isn't all that uncommon. If you don't have metals, and don't have plans for an SWCG, then I wouldn't worry much about the alk for now.There is a possibility that it will help precipitate the high calcium--let me look into that (or one of the other folks will chime in and offer an opinion), but if it won't, then trying to lower it is going to be a losing battle because you'll just raise it again everytime you have to top of the pool with your fill water.


The calcium, however, is a different story. Unless you use the cal-hypo to actually REMOVE the calcium (Pooldoc's the one to explain that one), I wouldn't add it to the pool just for chlorination. High calcium tends to produce milky water. While chemically it's not unsafe to swim in, it does create a danger if you can't see a swimmer underwater that may be having troubles.

Bleach, bleach, bleach...to keep chlorine levels at 1-3 ppm at all times until stabilizer is in the water. If you chlose to use the trichlor tabs, then that will lower your pH and add CYA. (I'd target 30-50 ppm of CYA but it'll take awhile to get there just using tabs).