Plain Walmart bleach is liquid chlorine. Pool Doc generally recommends you NOT use the SWCG until AFTER you get your pool "ready". What kind of filter do you have?
Read these, it will make your life easier and your pool happier.
http://www.poolsolutions.com/gd/abov...-problems.html
http://www.poolforum.com/pf2/showthr...p-routine-care.

If you have the cartridge filter, order 2 or 3 good ones now.

While you are at walmart getting bleach, see if they have this
http://www.walmart.com/ip/HTH-6-Way-Test-Kit/17043668
Get one if they do.

And if you have a sand filter, you might be interested in this,
http://www.walmart.com/ip/HTH-D.E-Fi...10-lb/20434370
the picture is WRONG, the description is CORRECT.
This is WHY you might be interested in D.E.
http://www.poolforum.com/pf2/showthr...to-sand-filter

Enjoy your new pool!