After getting 2 different test results from 2 different pool stores; found this site and ordered the TF-100--should be here pretty quick! Anyway, really appreciate all the advice in this forum-especially the BBB! But I have a question about the pool calculator. My levels (according to the pool store) were right on target..finally after having to drain approx. 29in of water to reduce the salt level and adding acid and CY Test results as of 6/27/10:
When I input these numbers into the pool calculator, it shows a CSI as -.55????? Does the calculator automatically take the above numbers and calculate-or do i need to calculate my own CSI?