cc high

[Kathe]

My CC is at 1 and I was told to add a non-chlorine shock oxidizer called "shock and swim." How serious is a high cc? I have noticed that the FC is going fast. My CYA is at 30. My pH and TA are fine. Water is clear.
I have a little bit of muck at bottom of pool that I haven't vacuumed out yet. Water is too cold to get into. If I use the oxidizer, will that help with the FC?

 

[Texas Splash]

Here at TFP, a CC over .5 is alarming. That along with your FC loss would indicate algae forming. We perform what is called SLAM (link below) to remove algae from a pool. Oxidizer won't work. You need to use regular household bleach in applications based on your current CYA - in your case you need an FC of 12 to be maintained 24/7 as noted on the SLAM page. You'll need the right test kit (TF-100 link below) as well to perform the SLAM properly. Take a look at our Pool School and SLAM pages for details.

Hope this helps.

 

[Richard320]

My CC is at 1 and I was told to add a non-chlorine shock oxidizer called "shock and swim." How serious is a high cc? I have noticed that the FC is going fast. My CYA is at 30. My pH and TA are fine. Water is clear.
I have a little bit of muck at bottom of pool that I haven't vacuumed out yet. Water is too cold to get into. If I use the oxidizer, will that help with the FC?

If you added the non-chlorine oxidizer at all before you tested, it could be giving you the CC reading.

https://www.taylortechnologies.com/ChemistryTopicsCM.ASP?ContentID=24

If you have debris in the pool and you're using a lot of FC -- more than 3 FC per day -- and you have high CC, then you need to SLAM using bleach. Once you start using that other "shock" you won't be able to know if the CC is eliminated or if it's interference.

 

[Kathe]

I have not yet added the oxidizer. I won't. I'll go back to pool school. Thanks!

 

[Kathe]

Do I have to get rid of the little bit of muck to have a successful slam?

- - - Updated - - -

Which is better kit? The TF-100 or the Taylor K2006?

 

[Richard320]

Do I have to get rid of the little bit of muck to have a successful slam?

Yes

- - - Updated - - -

Which is better kit? The TF-100 or the Taylor K2006?

TF100 is a better value.

 

[tim5055]

Which is better kit? The TF-100 or the Taylor K2006?

they both have the same Taylor reagents, just in different qualities. As Richard stated, for a residential pool the TF-100 is the better value.

 

[Kathe]

One more question....is the TC and FC ever truly 0 on a regular basis? Is there a range of cc that is ok? like 0-.4?

 

[Richard320]

One more question....is the TC and FC ever truly 0 on a regular basis? Is there a range of cc that is ok? like 0-.4?

No. In a perfect world FC = TC, but not ever zero. No matter what the CYA level, you need some chlorine in the pool to sanitize it.

If CC is .5 or less, we consider that the same as zero.

 

[Kathe]

No. In a perfect world FC = TC, but not ever zero. No matter what the CYA level, you need some chlorine in the pool to sanitize it.

If CC is .5 or less, we consider that the same as zero.

OK! Great! Makes more sense to me now. Thanks!