First year opening pool, green water after ascorbic acid!

[laureninMass]

Hi, First year pool owner... Apologies in advance for naivete or ignorance.

We have a 16x32 IG vinyl pool, ~22,000 gals, cartridge filter. When we opened the pool, the vinyl liner had a brown tinge for a couple of weeks that were not diminishing with shock. Using the vit C test, the brown stains lifted immediately.

I did a ton of web research, and then went to the local pool store where they recommended: Dechlorinator, 1 hour later 1 bottle Ascorbic Acid (which amazingly cleared the pool in minutes), 1 hour later a full bottle of "metal" free. I was told to let the filter go for 48 hours, switch out filter and add a bag of "slow release chlorine" Chlor Brite (sodium dichloro-s-triazinetrione dihydrate) followed by another bag within 24 hours. Within minutes of adding the first bag, the pool was green. I went back to the pool store, they said add another bottle of "Metal free", the pool was cleared by the morning but I assume that was because the Ascorbic acid ate back through the chlorine because TC was zero. When I added 1/2 of the second bag of chlorine 5 days after the Asc Acid treatment, the water turned green again and has been consistently green for two days. I have switched out the filter a couple of times as the pool store said it would be filtering out metals.

Here are my water stats:
TC: 1-2 ppm
pH: 7.2
Alk: 80ppm
Cya: ~50


The water is clear (a little murky when viewing the bottom in deep water) but GREEN. What can I do? Will this actually be filtered out or should I consider draining and refilling? Also, it has now been almost 7 full days without significant chlorine, do I need to worry about that (I did not use an algaecide)? I have read through all of the "metal in water" forums but none of them mention how long this process takes, or if it ever works. It would be great to know if the water is green do I need to go back and repeat any steps or just (hopefully) let it clear and raise the chlorine slowly (btw, how slowly?). Also, I added a 4pmm CuLator bag to the skimmer and a single chlorine puck.

Many thanks for any feedback.