My water is great and all is well
But .... i have been consistently testing low on CH (40+- but it's a vinyl) and 40+- on TA as well but wasn't too worried because my ph was stable.
I did a complete round of tests today and both the calcium (90) and TA (70) readings were much higher than in past tests. We have had a boatload of rain over the past 4-6 weeks but other than that the pool has seen nothing but liquid chlorine.
Here are the complete test results .... which are great and the water has been perfect all season
Any thoughts on the TA and CH rise??