I have a bit of a mystery, well to me anyway, I'm sure someone on here can figure it out for me.
We run an automated system for 12% chlorine and for muriatic acid.
I have no problems with this system and have been using it successfully for 4 years now.
My question is why would the chlorine level climb during the day when nothing has been adjusted.
Right now I have the ORP level set at 605 and the feed level at 600. It has been that way for a week at least.
As long as we don't have too many swimmers my test results stay fairly steady but when we have lots of swimmers the chlorine levels climb by the end of the day. That just makes no sense to me.
My test results today:
10 am TC 3.4 2 pm TC 3.2 8 pm TC 7.4
CC .2 CC .2 CC .1
Alk 150 150 150
I hope I have explained this well enough but feel free to ask me any questions. My alkalinity has been running high all season but it has been down to 200 at times but that has been the only thing different this year.
Hope someone can clear this up for me.