Well, thinking about it a little, I guess you could scoop out as much as you can....I would rather let the filter do the work.

Do you have a sand filter? If so, you'll just backwash pretty frequently during cleanup. I don't know about DE or cartridge.

You're gonna' need a ton of Clorox...probably double what you think. Since you have no CYA, I would put it in mostly at dusk....you'll get more use out of it rather than let the Sun burn it up.

You probably know the drill, bring the Cl up to shock level and keep it there. Run your pump 24/7. You'll get there.