Using the TF100 for the first time. Pool has been maintained by the same pool guy for years...house/pool is new to me. The pool is at least 11 years old (based on what I can see in Google Earth). I haven't seen him put chemicals in, so I don't know exactly what he is using, and I haven't been around for his last few visits to ask. I have seem him use test strips as his testing method. To my knowledge, he checks on the pool once per week. I think he probably was last here 2-3 days ago.
Chlorine Drop Test=6ppm
Water is clear, although I got a little cloudy early last week (about 10 days ago). I rinsed the (month old) filter and a fair amount of greenish water came out of it. I called the pool guy and he came by the next day and took care of it. When I got home a few days later it was clear like normal.
I intend to take over the pool maintenance in the next week or two...