In the last few days we had some thunderstorms with a few inches of rain. Afterward I noticed our pool was cloudy with a hint of green.
Using my TF-100 test kit, when I added the DPD powder to the pool water it did not turn pink at all.
Knowing no FC means shock the pool, we made a chlorine run and added 6 gallons of bleach. (17,500 gal./ CYA 50)
Three hours later I went to test again and still no pink to start with.
To confirm, I tried our simple Taylor K-1000 chlorine test. When I started adding the R-0600 it turned a wierd shade of orange.
(I assume this means we do have a great deal of TC?).
Could the pool have sucked up all the FC that quickly or did my DPD powder go bad?
The test kit is only about 9 months old and has been stored inside.
Taylor's website says all their products are engineered to last for at least a year under normal care.
P.S. while typing this I realized I should have gone ahead with the CC test. I will add the results in a few minutes.