New Pool Owner - Algae + High CYA

[B10Bewick]

Hey all! I'm a new pool owner and looking to confirm a few test points and next actions. I've been reading up the past week on the forums and the pool school so have purchased a TF100-Pro and ~8 gallons of Liquid Chlorine in preparation. The pool is currently very green and I just tested it using the kit. The previous owners used a Frog system pumping coppers into it. My fiance has been desperately trying to get me to go to a pool store and use what they recommend but I want to do it right. The numbers are below..

FC: 0
pH: 6.8 (there was some color but less than the lowest marking.)
TA: 0 (Color was magenta after adding R0008, it never turned green)
CH: 100 (Glad there was one within recommended..)
CYA: 100

With the CYA being so high, I think I have to pump the pool to get rid of it so that I can then Slam if the algae is still present. Is this correct?

 

[mknauss]

Welcome to the forum!
With a 0 TA (which could be negative), the pH is 4.5 or lower.
You MUST start draining this pool now, or raise the TA with baking soda, or the liner will need to be replaced.
Drain down half way. Any further is risky but can be done if you actively watch the liner for shifting or other issues. Immediately refill.
I suggest you read through Pool Care Basics - Trouble Free Pool and even look at a few of our videos TFP-TV - Trouble Free Pool

 

[B10Bewick]

Thank you for the quick reply! I will be going to HomeDepot to get a pump and baking soda+soda ash to raise the TA/pH once I refill the water and after testing again.