Never. If Acid and chlorine mix you get chlorine gas. Which is deadly.OK to store MA and Liq Cl inside the same deck box
As it appears you do not have a SWCG, you need to run the pump long enough and at a sufficient rpm to mix your chemicals you add and skim the surface. For your area, I would suggest 6-8 hours and an rpm of 1200. See if that keeps the surface skimmed sufficiently.What should I adjust it to tomorrow? And how long should I run it for?