My pool has been consuming around 6ppm bleach for the past month. Every day I've been feeding it 128oz of 10%. That's ~6.1ppm per poolcalculator.
Today I noticed what might have been algae on the light. I scrubbed it down and removed the light. Nothing behind the light. I decided to SLAM I had a couple of small spots a couple of weeks ago as well.
CYA is 45-50
FC was 5.4 to start + 1 bottle = target 11.5 one hour later
FC was 7.3 +1.9ppm so I've consumed 4.1 ppm in one hour? +1 bottle = target 13.4 one hour later
FC was 9.3 +2.0ppm so I've consumed 4.0 ppm in one hour? +1 bottle = target 15.4 one hour later
FC was 11.2 +1.9ppm so I've consumed 4.1 ppm in one hour?
The one bottle per day has been very consistent.
Is it possible that I'm not consuming at this rate and this is crapo bleach? That's only ~2ppm
my daily readings have been more or less consistent and the FC delta on a bottle is strangely consistent
1 week ago I passed an OCLT, I've never had CC > .5 and I can read the mfg of the drain cover from the deck.
If I hold here instead of going to 21 (target) for an OCLT what would this confirm bad batch of bleach? All of it came from the same store and was stored outside (not cool).