Switching from cartridge filter to sand filter

[jblizzle]

Yes. Test and post all the results.

The bubbles are likely due to the algaecide ... stop using it ... it will not clear up a pool once it is already green.

Hold on, this used to be a Baq pool? You may have to go through the entire conversion process: http://www.troublefreepool.com/content/153-convert-your-baqua-baquacil-softswim-pool-to-chlorine

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Lets figure out the Baq issue before you consider adding stabilizer. It is cyanuric acid and is not a household item, but can be bought in the pool section of Walmart and other stores.

 

[Gacatlady]

I apologize if I posted this twice. I guess it timed out. We had a storm nearby with no rain but still lost Internet. Attempting this from my phone.
Chlorine 0.5
pH 6.8
FC 1.5
CC 2
TC 3.5
Calcium hardness: (not sure about color desired) at 13 gtts blue purple = 325
At 16 ggts = 400 dark blue
Alkalinity TA = 30
CYA = way too low. Started turning at 20 though

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PS. my sand filter arrived late this evening.
PSS. The pool filter is different since the baq system was last used and may have been over a year now.

 

[jblizzle]

With high CC showing up, I would recommend following the conversion article. Until the CC drops and the FC starts to hold. The start of that conversion is very similar to the ShockLevelAndMAINTAIN Process anyway.