Thanks for your help Ben. I've set the SWCG to 20% and I'm only running the pump for 12 hours a day. It's been running this way for 10 days now. The chlorine level is coming down. It's no longer orange; it's yellow but a little darker than the 5 - 10 reading. The water looks good. I'm still trying to get a grip on exactly what numbers I'm looking for.

Thad