Just opened pool and Zero CC
- Thread starter jfh342
- Start date
I would retest and add one or two drops out of the chlorine jug to see if it turns pink to rule out a bad test kit.
Does the chlorine smell like bleach ?
Does the chlorine smell like bleach ?
- Jun 22, 2014
- 49,393
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Also, do not add anything else to the water at this time other than liquid chlorine. No HTH powders or anything else.
I just tried this, I used 10ml tap water and one scoop FAS-DPD(R-0870). I used a dropper to drop chlorine straight out of the jug into the mixed water and powder.
You could see it turn pink around the drop of bleach, on the 2nd and 3rd drop it stayed clear with no pink.
Not enough powder R-0870 to test that much chlorine.
You could see it turn pink around the drop of bleach, on the 2nd and 3rd drop it stayed clear with no pink.
Not enough powder R-0870 to test that much chlorine.
- Jun 22, 2014
- 49,393
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
This may be misleading or confusing as undiluted chlorine can have unintentional effects on the reagents. I would stick with the standard testing process of 10 ML sample and one generous scoop of powder.
We'll see what update the OP has after performing the 10-min drill.
If there is too much chlorine in the pool will the test kit work with only one scoop?
If you had 40.0 FC would you have to add more FAS-DPD(R-0870) ?
If you had 40.0 FC would you have to add more FAS-DPD(R-0870) ?
clambert1273
Gold Supporter
- Jun 13, 2013
- 1,493
- Pool Size
- 12000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool Edge-40
- Jun 22, 2014
- 49,393
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
No, no need to add more powder to compensate for various levels of FC.
OK what about mixing ? Has the pump run for a full day ? Or did it circulate the water a bit and hasn't run much yet ?
clambert1273
Gold Supporter
- Jun 13, 2013
- 1,493
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- CircuPool Edge-40
In addition to this, how are you measuring your CYA? Like literal steps
Completed the 10 minute drill with no changes using the R0870. I did a second test with the K-1000 test kit and that one is showing that there is chlorine present. I must have a bad batch of R0870. To be sure, I added a drop of bleach to the 10ml and then added the R0870 and other than a micro flash of pink at the very beginning it stayed clear. I'll be looking to get a new batch of R0870.
clambert1273
Gold Supporter
- Jun 13, 2013
- 1,493
- Pool Size
- 12000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool Edge-40
- Jun 22, 2014
- 49,393
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
At this point that sounds like a good call. If you have any other thoughts or questions about the process, let us know. A few of us are on the edge of our seats curious about your situation.
It'll probably take a few days before I receive the new R0870 in the mail, but I'll be sure to come back and post the results. Thank you all for your support!
clambert1273
Gold Supporter
- Jun 13, 2013
- 1,493
- Pool Size
- 12000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool Edge-40
Going down a rabbit hole introducing straight bleach into a testing procedure.
In the presence of VERY HIGH chlorine (straight bleach) FAS/DPD will flash pink and then return to clear immediately.
OP, please perform the OTO chlorine test (R-104) and report the color you see.
How old is the kit?
In the presence of VERY HIGH chlorine (straight bleach) FAS/DPD will flash pink and then return to clear immediately.
OP, please perform the OTO chlorine test (R-104) and report the color you see.
How old is the kit?
Saturn94
Bronze Supporter
- Mar 11, 2015
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A drop of bleach in just 10ml of water likely resulted in a FC level WAY too high for the FAS-DPD test to measure. The extremely high FC in the sample would like “bleach out” the color, which makes sense given you saw just a flash of pink then clear.
If I remember correctly, The FAS-DPD test is good up to about 50ppm FC.
Edit; Duraleigh beat me to it.
The color of the new powder is white. No grey tint at all, which I thought unusual.