New Pool

[Gobil527]

I added about 1lb of Sodium Carbonate (pH up) yesterday. Then it rained a ton.
The feeder is NOT on, and the tablets (3" trichloro-s-triazinetrione tablets) are still in the car, lol.
Chlorine dropped to 6ppm.
pH is 7.6 now after adding and waiting approx. 24hrs to retest.

I have no Combined Chlorine reading still. Is that a problem?

looking good i think.

[PoolDoc]

You don't WANT a CC reading, or rather, a reading of CC=0 is optimal. So, no, it's not a problem.

[BigDave]

You need a source of chlorine. If you don't maintain chlorine, your pool will go green again. You can use tabs in your feeder for a while but when your CYA reaches 40-50, it would be best to stop the stabilized chlorine and start using bleach.