Started SLAM Process

[Scotland]

CYA was 20, FC was 3 & CC was 0.5.
2 hours after adding bleach FC is 13 and CC is 0. Anything else I need to regularly test?
Do I just keep adding bleach to keep FC at about 12, until the water goes clear and it passes the overnight test?

 

[Texas Splash]

Did you adjust your pH to about 7.2 first? Colder water might not make that step such a big deal right now, but it may be something you check next time you find the FC below 10. It's difficult to confirm a CYA of 20 since the tube viewing isn't proportional to levels below 30, but if it is less than 20, an FC of 10 may suffice. If you later increase the CYA slightly to be sure it's a minimum of 30, then an FC of 20 is fine.

From there .... yes, maintain that proper FC level and do all the other tasks on the SLAM Process page. Good luck!

 

[Scotland]

Sorry, yes. pH was 7.5.

Ok, so I’ll get the FC up to about 15?
Will the CYA increase with the SLAM process?

The pool is getting closed Dec 9th, so I need to get the FC stabilised before then. I’m told the CYA is not a massive concern given that I’m closing?

 

[Texas Splash]

Ok, so I’ll get the FC up to about 15?

Not 15, an FC of only 10 since your CYA is estimated to be slightly under 30. CYA will only go up if you increase it with stabilizer.
See FC/CYA Levels

 

[wireform]

It will increase the amount of chlorine you need for the slam. Being that it's fall, the sun angle isn't strong so I would not do anything now with it. Just follow the slam and maybe on the back end up the CYA.

 

[Texas Splash]

I just saw your updated post about closing. That said, CYA probably isn't the biggest concern. Bump that FC to about 10 and follow the SLAM page as you go. With chilly water, you should be done before closing or well under control.