Here's another one. Thought folks who are finding themselves in this situation might appreciate this:
20140520_121526 by poolmom11, on Flickr
Crystal clear water - I was able to clearly see the bio-film coating the entire pool... oh and a million worms. Ammonia between 4-6, guessing 5ppm. This was yesterday about Noon.
Brushed as much of pool as we could see before it became too green and cloudy to see where we might be missing... 5 cases of 12.5% in.
Started this one at 3pm. Black - Tea leaves black... Ammonia about 3ppm. 3.5 cases in. This one has no filtration so I'm temporarily using portable submersible pumps for circulation (She's got a party in 2 weeks - no time to waste till the cracked pipe is repaired....)
20140520_161042 by poolmom11, on Flickr
With both cases after adding the FAS-DPD powder I got a light pink result that I would from prior experience as .5 FC, clearable with 1 drop typically. One drop would turn it clear, for about 5 seconds - then pink would bleed through as I've described to some of you. Already the high CC/ammonia interference. On the second pool, same thing - a shade of pink I would describe as clearable with one drop when doing normal FAS-DPD chlorine tests. As it sat while I reached for the r0871, it turned a darker shade of pink, without me swirling. Confirming the ammonia before I did the FC tests - I knew the initial tests might be skewed. I also knew the first round of testing after initial chlorine addition wouldn't mean much cuz a lot more chlorine is in order. But this is the tricky part when advising newbies on the forum who are dealing with a similar situation.
Will keep you posted.... Back to both pools today.