I think you have the strength set to 6% instead of 10%. You should need 1.75 gallons of 10%. Just estimate the 3/4 gallon, no need to be exact.
I'm still not clear on the brown substance at the bottom of my pool. It moves easily if brushed and comes up with my robot cleaner. 12 hours later it seems to settle back in the same places. Could this be brown mustard algae and what you are referring to as 'fighting something'. I'm new at this.. just wondering.
OK, you good.. [emoji2]Just to make sure, you put 10℅ bleach in the percentage on pool math.. If so, that is correct and start your slam, the first addition is always the most...
I am using my phone so please excuse any spelling errors and short response.