Question on whether once you add chlorine after dark to a certain number, can when you check later it be higher?
Last two nights this has happened during shock process.
Added at 9:40pm from 23 to 28. when i checked 1 hour later it was 30.5.. figured operator error.
next night. at 7:40 added from 20.5 to just over 25. at 9:50 it was 27.5 checked again same 27.5
is it all about how much 0870? i always use heaping spoonful, and some always on bottom of vile