I'm looking for the exact way to complete the OCLT, but I can't find anything when I searched. Could you explain the steps involved
Nitrates help
- Thread starter Navydanny
- Start date
Here's the link Marty posted again: Overnight Chlorine Loss Test
The reasoning is that two things use up chlorine: organics (including algae) and sunlight. If you have no algae and no sun, you shouldn't lose any at all. So you test chlorine after the sun sets and get up early and test it again before the sun hits the pool. If you lost none, all is well. If you lost a bunch, something is eating it, and it isn't the sun. That means algae.
Again Overnight Chlorine Loss Test
Ok, I guess because I'm using the app it doesn't allow for links to be sent. I'll have to go to the desktop site. Thank you
So did my over night test last night. Was on vacation. Added 2 bottles of bleach waited about an hour with the pool running, was at 3.8 ppm fc. Tested right now and was at 1.2 so now what? Seems like a lot of loss over night.
- May 3, 2014
- 58,656
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
With more than 1 ppm FC loss overnight we suggest you SLAM Process. Base your shock level FC on [FC/CYA][/FC/CYA]. With a CYA of 50 that is 20 ppm FC.
Let us know how things progress.
Take care.
- - - Updated - - -
Also - start using a 10 ml sample of water for your FC testing. Each drop of reagent to clear then counts as 0.5 ppm FC.
Let us know how things progress.
Take care.
- - - Updated - - -
Also - start using a 10 ml sample of water for your FC testing. Each drop of reagent to clear then counts as 0.5 ppm FC.