I just now kind of reskimmed this thread and see that you said earlier that you had the 6-way kit. Sorry about that. We read and respond to SO many threads that sometimes we forget some of the particulars about a specific poster's problem. Plus, you only gave a TC reading. I thought the 6-way kit also allowed you to either find FC or CC. Can't remember. It has been a long time since I used a 6-way kit.

I'm not saying you have to drain. You can run a pool with a high cya level. You just have to run your cl higher than normal. Take a look at this chart:

Stabilizer . . . . . . Min. FC . . . . Max FC . . . 'Shock' FC
=> 0 ppm . . . . . . . 1 ppm . . . . . 3 ppm . . . . 10 ppm
=> 10 - 20 ppm . . . . 2 ppm . . . . . 5 ppm . . . . 12 ppm
=> 30 - 50 ppm . . . . 3 ppm . . . . . 6 ppm . . . . 15 ppm
=> 60 - 90 ppm . . . . 5 ppm . . . . . 10 ppm . . .. 20 ppm
=> 100 - 200 ppm . . . 8 ppm . . . . . 15 ppm . . .. 25 ppm

Since your cya is 110, then that means that shock level for your pool is 25ppm of chlorine and normal maintenance levels of chlorine must stay between 8-15. It can still be done, though if you don't want to drain. But, it is going to continue to cause you to use a lot of chlorine.

Have you used lots of triclor tablets in the past? They have cya in them and that is how a lot of people unknowingly get such high cya levels.

So -- two options. Either do a partial drain and refill or leave it as it is but use a LOT of bleach and shock that pool up to 25. I'm sorry you are having such a hard time, but ultimately, you will get it taken care of and be able to enjoy your pool.

(BTW -- In a pool your size, each gallon of 6% bleach should raise your cl level by just under 3 ppm.)

EDIT --- Just noticed that you tested and got a cya reading of 60 vs. pool store reading of 110. Don't know why I didn't see that before. Retest and see what you get and/or maybe let a different pool store test it and see what they get. Do this before you decide to drain. If it is indeed 60, that would be a much more manageable level. Note that the shock level would change for that cya level. Check the chart.