The pool I care for has not been emptied in at least five years. I have no way of testing for TDS. I am concerned about a buildup of cyuranic acid from the tri-chlor I use. No way of testing for that either. About once a week I dump a small amount of the water and refill.
What is the common wisdom concerning TDS, Cyuranic Acid, etc.? Am I doing enough, or should I persude the owner to let me empty the pool at some point and start fresh?
Thanks for your help!