Ok, Maryann;

It doesn't sound like you have any urgent problems. The fact that the walls are not slippery makes it unlikely you have algae. With the other observations, it's most likely you do have iron.

You need to understand that FIRST, the iron is not a hazard in any way (after all, it's safe to drink!), but that SECOND, there's no quick and easy way to remove it.

The BEST way is to slowly remove it. But, the ONLY way to remove metals is to change them to a form that will filter out OR settle to the bottom. Settling is a mess, so I'd stay with filtering.

Chlorinating your pool will gradually convert the iron to the orange form that will filter or settle. If you keep your pH on the low end of things, and don't suddenly increase the chlorine, this conversion may happen slowly enough for your filter to keep up.

So . . .

1. Chlorinate 2x per day with bleach, just to maintain 2 ppm. Add the bleach via the skimmer (if you have one) or near the intake if you don't.
2. Buy some polyquat 60% algaecide and use small doses 2x weekly. It will help prevent algae while your chlorine is low AND it will help filter the debrit.
3. Run your filter 24/7, but do NOT clean it until your flow drops off. Cleaning too much will make it harder to filter the iron out.
4. Buy a small bag of DE powder, and put about 1 cup in the skimmer or intake after you clean the filter each time.
5. Use borax, 20 Mule Team white box, from the laundry section as needed to keep the pH at above 7.0. Don't use it otherwise.

Besides that, for now just enjoy and use the pool.

If you have any chems left over post what they are AND the technical chemical name on the package.

PoolDoc