Combined Chlorine Test

[Jakebear]

I must be doing something wrong!!! In 4 years I have never measured any CC in my pool!! That’s great you say, but I am sure there are some.

Today I violated this forum’s recommendations and took a sample to three different stores. My sample showed between 2 and 3 ppm CC at the stores. The stores all tried to sell stuff but I wasn’t buying.

I do my tests per the kit instructions, being very careful and keeping everything clean and fres reagents. I'm doing both standard DPD and FAS-DPD. Never is there any CC. Is there some trick I’m missing?? Surely the stores don’t spike the reagents to give “Sales” results --- especially 3 out of 3.

By the way I did go to Walmart ---- 182 oz Clorox Ultra for $5.00. Picked up 10 for my cloud removal tomorrow.
Edit --- Standard Clorox Ultra --- Mis-typed or brain fart??
My results for today are:--- Store Results
pH 7.7 by titration ---- 7.3 -- 7.6-- 7.6
FC 7.5 ppm (FAS-DPD)--- 5.9-- 5.2-- 5+
TC 7.5 ppm (FAS-DPD)--- 7.0 -- 7.6-- ??
CC 0 ppm (FAS-DPD)--- 1.9-- 2.4-- ??
TA 90 ppm (by titration)--- 85-- 62-- 125
CH 280 ppm (by titration)--- 205-- 190-- 210
Phosphates <100 ppm--- NT-- No test -- NT
CYA = 60 --- 75-- 60-- 60
ORP = 755--- NT-- Nt-- NT
TDS--- NT-- 890-- 1500

Edit This all ran together --- My results are first then store 1 store 2 etc. separated by--