OK. That's a mess. Do this:

1. Tell me the EXACT product name on the 15 bottles of stuff you put in the pool.
2. Tell me the EXACT product you are calling alum -- I'm assuming you didn't buy a 100# bag of industrial aluminum sulfate. (Actual industrial alum is usually a coarse tan granular material.)
3. Tell me what COLOR the water is.
4. Start ignoring your pool store -- anybody that let you put 15 bottles of metal remover in a small pool is without a clue!
5. Turn your pump on, and leave it on. AND, turn your SWCG OFF and leave it off.
6. Get a cheap OTO chlorine test kit, use it, and tell me what you see.
7. As soon as you get a chance, open the filter, and make sure it's FULL of sand.
8. Order a K2006 ASAP; you can use the Amazon link in my signature if you like.
9. Use the bleach to keep your chlorine in the 3 - 5 ppm range. Dose in the evening.
10. Buy a 25# bag of DE powder. Add two cups -- only -- of DE to the skimmer. Then, go watch the returns, to see if the DE comes back into the pool, as a white stream (I hope your pool is clear enough for that). If it DOES come back, you'll need to repair your filter. If not, begin adding 2 - 4 cups of DE to your skimmer after each backwash. You'll lose the DE . . . and some of the gunk . . . each time your backwash.
11. Plan on this taking awhile (2 weeks?) to clear. If you get impatient, it's likely to get worse, so don't. (Our stock of quart bottles of P.O.P.* is out, so you'll need to fill your own!)
12. Send us the K2006 results, once you have them.
13. For now, do NOT put ANYTHING else in that pool, except bleach!
14. Draining and refilling would be faster, but do NOT do this on your own -- you can destroy your liner, or even your pool. If you want to do this, hire a pool company to do it for you.


* P.O.P. = Pool Owner Patience!