Jump to content


  • Content Count

  • Joined

  • Last visited

Community Reputation

0 Neutral

About _Samuel_

  • Rank
  1. I worked some numbers and came up with a formula for chlorine demand. It's: CD = 1 - deltadays_root(ppm_end / ppm_begin) Where: deltadays = the number of elapsed days deltadays_root = take the nth, deltadays, root, so if deltadays was 2 it would be a square root, if 3 then cubed root, etc. ppm_begin = starting ppm ppm_end = ending ppm I've cross checked the formula with a few points in the table (in this thread) and the numbers match up. I was using excel to make the calculation and there isn't an nth root function available. You can use 1/del
  • Create New...