Need help with Chlorine Demand test!!!

[mer33]

Only source of Chlorine is from the bleach. I don't have SWG. Chlorinator, i vacuumed all traces of pucks almost a month ago.

with the new solution I got from TFTest (2Oz), the flow is much faster.
May be I will transfer to the Taylor bottle and try my next test slower.

i switched to 25 ML samples. Will try 10 and 5 ML to see if there is a difference

 

[tim5055]

No need to use 25 mL sample for 0.2 ppm accuracy. You can go ahead and use 10 mL sample for 0.5 ppm accuracy. It will save you reagents and is close enough for us.

 

[mer33]

All - It is embarrassing but I got to admit, I messed up with factor we use for FC With different water level.
By doing this I have wasted a day in this SLAM process. Instead of of using .2 multiples, I used .5 and came up with these huge numbers.

I tested again and it is 66 drops which actually is 13.2 FC
Will continue with the SLAM

 

[mer33]

Folks,
i think I have an upper hand on the Chlorine issue finally.
The pool was used heavily over the weekend. Chlorine level was consistently good.

I was continuing the SLAM. Yesterday night at 9 PM my FC was 22.5 and CC 0
This morning at 6:15 AM my FC is 21.0 and CC 0

The water has always been sparkling clean.

Thanks