I can't get to 0 CC... Normal?

[waterbear]

IF one drop is clearing the slight pink color that means you have a CC of .5 or less. I wouldn't worry about it. If it is more than one drop then I would shock.
Just my 2 cents.
Are you testing after the pool has been used? It is often normal to show a bit of CC after use.

[jenpen400]

I was always getting the same .5 cc reading too until I got new reagents! So if they are from last year or clumpy and old it might be time to replace.
Good Luck
Jennifer

[leejp]

I was always getting the same .5 cc reading too until I got new reagents! So if they are from last year or clumpy and old it might be time to replace.
Good Luck
Jennifer

Kit's new this year (PS234). Not many swimmers in the pool until very recently (been a col summer). Still ~0.5 or less CC reading every time. Pool does get its share of leaves and pine needles... enough so I have to run the pool rover plus ~2x/week.

[CarlD]

I went through a period of that as well. It's usually not a problem if EVERYTHING else is good. I suspect it was that some algae forms inside my drop-in steps that not enough chlorine can get to. Last year, I put a floater with some pucks INSIDE the steps shut down to it's lowest level. That helped for most of the season.

This year I'm trying to use 80# bags of water softener salt to hold the steps down and they aren't perfectly sealed, so some saline is leaching into the pool with the highest concentration under the steps. So far, no CC....