copster30 said:
So i did the tap and pool water test and it looks like my CYA is around 180-200 so i guess i'll have to look at draining.
Thanks for all the advice!
So your dilution result is still 90 to 100, basicly where you were to start with. If you have plenty of reagent, and want to play, you can do the half & half dilution like before, THEN dilute that solution with half tap water again. Perform your test and multiply result by 4.
As it is, given your results, you're looking at around at least a 75% drain to get CYA down to about 50. And thats assuming that CYA is not much higher than 200 which it very well could be. You can thank the stabilized chlorine pucks for your situation but at least you've found this forum and now know what causes these problems so you won't be subject to this happening again, once you get it all straightened out.
You might want to check with some pool builders or pool stores in your area, maybe even neighbors, to get some input on ground water levels in your location. If you could do so without risking damage to the pool you might want to consider just doing a complete drain and refill and start over. Of course you always have the option of doing partial drain/refills over an extended period, but, you'll have to monitor closely and maintain the recommended level of FC so as to avoid an algae problem. Otherwise getting rid of algae at a very high CYA level will require quite a lot of bleach.
In any case, don't panic and rush into anything quickly. Your pool didn't get this way overnight and the fix won't occur that quickly either. Take your time, educate yourself and explore your options, and as always I'm sure others here will have some further suggestions and options for you to consider.