So after 12 years of always having a service do our pool we have decided to do it ourselves and thankfully I found tfp. I just got my TF100 yesterday and here are the results:
Scaling is definitely a problem with the water in our area. This weekend I am going to test the tap water. Looks like I will be draining soon mainly to lower the cya. Not sure I have any hope of lowering the CH without another source of water.
I have been reading this site for about a week now and I want to thank you for all of your sound advice.