Finally got the test kit (K-2006) with the Taylor speedstir.

Pool results: TA 200, pH 7.4, CH too high (stopped drops after about 40), CYA off the charts (high, high, high), didn't check CL

Tap Water results: TA 160, pH 8 (but took 3 drips to change to good), CH 200, CYA off the charts (low, low. low), didn't check CL

I plan on draining in a few days, and need info on what to add when I do change the water.

Note: The pool looks good right now, but I'm still getting a little foam when the water splashes. That is because I added algie killer (from HDepot) to kill the algie stuck on the walls. My intent was to kill the algie before I drain, so as to not get it back when I refill. The water does seem to have color right now, but not sure. I've dumped the pool water about 10years ago, whole pool.

Any other data needed before I dump?