OK, I'm a new pool owner. Set pool up on 6/1/2011, had pool filled 29 hours later. Here are the pool stats:

Pool Size:33 X 54" so approximately 33,000 gallons of Water
Water Type: Well Water with very some iron
Filter Type: Cartridge with Nature 2
Pool Manufacturer: Creation Genesis

Started pump/filter today, 6/7

Tested water and
Free Chlorine was 0
PH was 8.4
Alkalinity was 180
Stabilizer was 0

Added 3 lbs. of PH Down and it brought everything into line

Free Chlorine was 1
PH was 7.2
Alkalinity was 80
Stabilizer was 45

Took water into San Juan pools and everything was perfect but they told me to add "Shock" because it was the 1st time pool was filled. TURNED WATER GREEN, GREEN, GREEN. There is now brown stuff on the sides of the skimmer.

What the heck? This can't be this hard.

What do I do?

Yes, I put in the Z-Tab chlorine cartridge and the Nature 2 A30 Mineral Cartridge.

Please help. I don't have a lot of money left over for additional chemicals.

Thanx, Lisa