Did my weekly tests this morning and came to the realization that I've been testing CH incorrectly. I've got a Taylor DPD test kit and have been stopping at purple instead of blue for the CH test.
I took a water sample to Leslie's this morning with my test results and all results match except for CH which they tested at 680ppm!
Rest of test results:
I tested my fill water once I got home and realized that it too is very high (>400)
Since drain and refill does not seem to be an option what's everyone's take on sequestrants in the short term, and using a conditioning service to get it down longer term. Another option that I thought of is to use a water softener, but I'm not sure that this would be a good thing.
Any suggestions would be appreciated.