Combined Chlorine Test

[Jakebear]

See edit --- I had a brain fart --- it is standard Clorox Ultra. Thanks for the catch!!

[Jakebear]

Larry,

I use a FAS-DPD kit (Taylor K-1515A)---using a 25ml sample you will get a resolution on the end point within .2ppm --- That is 2/10ths

The results I posted were a mix of mine and pool store --- Some stores use a colorimeter which yields results to .1 but since I don't trust the stores techniques or calibrations (if they did any) --- you can probably round their numbers off to the nearest whole number.

[waterbear]

Larry,

I use a FAS-DPD kit (Taylor K-1515A)---using a 25ml sample you will get a resolution on the end point within .2ppm --- That is 2/10ths

The results I posted were a mix of mine and pool store --- Some stores use a colorimeter which yields results to .1 but since I don't trust the stores techniques or calibrations (if they did any) --- you can probably round their numbers off to the nearest whole number.

IF they are using a LaMotte Waterlink colorimeter then they are not waiting for the TC result to stop moving on the meter. I have seen this happen where I work when inexperienced people do the test. The FC test needs to be read within 30 seconds and the TC needs to be read at 1 minute for accurate results!

[medvampire]

A few weeks ago when I was salting my pool I had the pool stores test my water. The results they gave me didnt agree with my testing for CC as well as pH. The tried to sell me shock and dry acid for a pH of 7.6. I have lost my faith in most pool store chemist.
Evan (waterbear) you know I dont include you in that statement.
Steve

[waterbear]

A few weeks ago when I was salting my pool I had the pool stores test my water. The results they gave me didnt agree with my testing for CC as well as pH. The tried to sell me shock and dry acid for a pH of 7.6. I have lost my faith in most pool store chemist.
The problem is that they are NOT chemists! They just play one at work!
Evan (waterbear) you know I dont include you in that statement.
Steve

I know....I would like to publicly announce that I take no offense at bashing pool store idiots...I bash them too! On another swimming pool board that I freqent I had the president of Orenda Technologies, who is an administrator of the board, send me a PM so I knew his negative comments about pool store personel did not apply to me! (He told someone not be be 'pool stored'!) It's really very humbling to realize that industry professionals repect my opinions! I have to give credit where credit is due....most of what I know about pools I learned on here and PoolSolutions! I have Ben to thank for that! Thanks Ben!!!