diff -r e6e5d007eb54 -r c0f0bbfefd63 www/js/global.js
--- a/www/js/global.js	Mon Dec 17 22:24:32 2018 +0100
+++ b/www/js/global.js	Wed Dec 19 21:58:21 2018 +0100
@@ -579,6 +579,7 @@
  *
  *
  * HCO3 = CaCo3 x 1,22
+ * CaCO3) = HCO3- x 50 / 61
  * 1°F = 10mg/L CaCo3
  */