If you tested it correctly with the Taylor K2006, it's not lower than you think.

We don't fully understand all that goes on when you chlorinate pools; no one does fully understand all that chemistry. It gets very, very complex. So as a practical matter, we all have something of the attitude, that "if it's working, even if we don't understand, we should leave it alone".

Again, I think you need to apply some P.O.P., let the chlorine drop, use the pool, and see if all works OK.

Ben

* Pool Owner Patience.