SLAMming and bubbles appeared overnight

[dozer11]

I've been in the SLAM process for about a week now. This foam/bubbles appeared overnight.
PH: 7.6
TA-80
CYA-50
CH-90
FC-13 (SLAMMING TO 20)

Anything to be concerned about or just let it run its course?

 

[mknauss]

What bleach are you using?
Foam is not unusual when killing algae.

You are not following the SLAM Process process. You will not likely be successful. See FC/CYA Levels

 

[dozer11]

You know what...I had a typo up there! Our CYA is 50. It was much higher but we did a partial drain and refill. Sorry about that.

We are using Walmart's Great Value Bleach...no scents or not splashless. It's only 6%. I've had a hard time finding 8.25 percent lately. We also bought some liquid chlorine from Menards, that was at 12.5%.

Thanks.

 

[dozer11]

I've been SLAMming for 1 week now. The pool started out really dark, now it's been like the above picture for 3 days, with very little change. Is this normal? We are on average able to test and add chlorine 3-4 times a day. Yesterday we only could do it 2 times...