I've lived in Austin, TX for 16+ years and I bought an Endless Pool swimspa a little over a year ago. I've been paying a service to clean and take care of the chemical for me, and it was going fine for about a year. Lately they've swapped in a new guy, and he's been dumping crazy loads of chems in there (and charging me for them) with terrible results. I ordered a TFT100 test kit and just ran through all the tests. The dude was here last Thursday, today's Tuesday, and FC = 0, CC = 0.5, pH is at least 8.2 (that sure is a pretty dark pink color), TA = 400, CYA = 90. The guy has been pouring liquid chlorine in like it's going out of style, and two weeks ago he added a bromine floater.
Long story short (too late), I think it's time to fire the expensive pool guy and take matters into my own hands. I keep the pool covered about 22 hours a day, with a thick, insulated spa cover. That means cleaning is never a problem. It also helps with temperature management. Even with daytime high air temps of 95-100 for the last couple of weeks, the pool water is a nice 83. Since it essentially never needs much cleaning, chems are the only thing to worry about.
I love the endless pool, but now I need to actually understand the water chemistry, so here's hoping TFP can help!