What algaecide did you use (what was listed as its ingredients)? Algaecides really do not help with shocking, they work best when used as a preventative measure.
Sounds like you have decided to do the shocking process. Have you reviewed it lately: http://www.troublefreepool.com/pool-school/shocking_your_pool?
When you get your test kit, you will learn so much more about your pool chemistry. Then you can do a OCLT:http://www.troublefreepool.com/pool-school/overnight_fc_test and know if you have Algae that needs the shocking process (that black dot may be black algae). Also you can check your CYA level...that maybe why your get so much "burn off."
Sounds like you have decided to do the shocking process. Have you reviewed it lately: http://www.troublefreepool.com/pool-school/shocking_your_pool?
I am pretty sure ph rise is not a direct result/sign of algae. Usually ph that is going upward consistently is due to high TA. What did your water look like?filb said:Just superchlorinated the pool with 50 or so oz pool bleach, plus some 50% algaecide, since the MA isn't helping the PH keep from bouncing up high, so it could be some algage hiding somewhere
When you get your test kit, you will learn so much more about your pool chemistry. Then you can do a OCLT:http://www.troublefreepool.com/pool-school/overnight_fc_test and know if you have Algae that needs the shocking process (that black dot may be black algae). Also you can check your CYA level...that maybe why your get so much "burn off."