Adjust TA when chlorine very, very high?

[dawndenise]

I'm in the midst of a battle with what appears to be that hard-to-kill algae. I've been running my FC in the mid-20's, gone to 30 and just now added enough bleach to go to 35 . This is kinda scary.

My TA had been solid at 80 all summer until a test on 9/13 when it dropped to 60 for unknown reasons. Added 4# baking soda, tested out at 80.

Then the what-I'm-assuming-is-algae happened. In the midst of battle, my weekly test for TA was 60 again. Added just 1# of baking soda on Monday and Tuesday's tests showed no change in TA. Added 2 more pounds of baking soda yesterday and today there's still no change, still reads 60, maybe even 50 because the color changes are different at high chlorine levels.

Could my high chlorine levels be influencing my recent TA levels? Should I continue to add baking soda? Don't want to eventually have normal CL and find out I have too high TA.

TIA for any advice and input.