If you aren't under any water restrictions, and don't have especially expensive water, the easiest and fastest way is simply to drain and refill, and then follow the recipe here:
http://www.poolforum.com/pf2/showthread.php?17055

A couple of comments on the stuff you have:

1. Don't use any more of the "Safer Muriatic" acid -- we haven't been able to confirm that the additives are pool compatible.

2. Both dichlor and trichlor will lower your pH when used regularly. If you want, just max your trichlor floater out, till your CYA level reaches 40 ppm. Use 1/2 doses of dichlor for startup, along side the trichlor floater.

3. If you use the dichlor / trichlor, the alkalinity and pH issues with your fill water should resolve themselves.

4. You do NOT want to use the Proteam algaecide -- it's a mess. BUT, you can use it to clean up your pool if you drain. Just drain 3/4 of the pool, add ALL the algaecide, slosh it around with a brush, and leave it overnight. Slosh again the next day and finish draining. That should take care of your algae, and give you a clean pool to refill. (The algaecide, at that concentration, is also a fairly good detergent. But it's very irritating, so don't get in the pool with it.)

5. If you need to shock, use a double dose of PLAIN 6% bleach.

6. Do NOT use any other chemicals except the trichlor, diclor, bleach and -- if the pH goes low -- borax. Don't use the acid of any kind unless the pH goes above

7. Don't add bicarb; don't add stabilizer; don't add clarifier.

8. Intex cartridges are supposed to be replaced every 2 weeks. If yours are past that, get new ones. Ideally, get Unicels (info below).

9. Tell me how you like the "Catfish".

Ben

=============================


+ The OEM cartridges in Intex / Summer Escapes / etc. filters are not high quality. The Intex manuals recommend replacing them completely every 2 weeks. A BETTER option is to replace them permanently with 2 - 3 Unicel cartridges, and rotating them through a cleaning solution. Properly maintained, the Unicel cartridges will last all season AND will filter better. So even though they cost more per cartridge, they cost less per season! Learn to maintain them, by reading this post, Cleaning-your-Cartridge-Filter-wiithout-Damaging-It!