Thank you, thank you for the info. I don't want an algae problem, so I'd rather just go ahead and shock it - I actually thought one should shock any newly-filled pool anyway. If I add the bleach or calcium hypo to shock tonight, should I see that 15ppm on my morning water test? Or would it have come down by then? What level is swimmable?

Can I add everything into the water tonight? I realize I can't MIX it all up together, but can I treat the water with muriatic acid, baking soda and bleach within, say, an hour?

Thanks again for all your help.
Sandy