First time opening - CYA and SLAM question

[Texas Splash]

I think you have the right idea. Best to be safe. At least your water looks good and your CYA is on the low end requiring less bleach. Good luck on your OCLT.

 

[klb]

Passed the OCLT this morning. Will recheck all chemistry this afternoon to see if CYA improved and see how much chlorine drops. Hopefully chlorine will hold better with bump in CYA.

 

[millerman92]

I am also slaming my pool (SWG) my FC goal is 12
i just checked and it was 8.5 added the proper amount of bleach (2quarts 3 cups). I have used 986 oz of bleach over the past two days. I am going to check FC add bleach if necessary and add CYA to go from 30 to 40 tonight. pump is running 24/7.

Also I unsed non-SWG chart to calculate FC goal as the SWG chart starts at 60.

How long before I will begin to see clear water, not foggy. I can barely see the turtle tail on the bottom.

1st time I've done this,

Thanks

 

[klb]

Numbers tonight. FC dropped from 12 to 6.5 today. CC 0.5. CYA 30. pH 7.4 and TA 90. Numbers look good. Just a little concerned that FC dropped so much today. Not a lot of sun today. Do I need to add any chlorine tonight or just wait and recheck in am? Concerned that if I don't add and it remains stable overnight, that I will lose too much tomorrow. Should I just test FC a couple of times a day until I get the hang of it. With CYA of 30, my target is 4-6. Thanks

 

[Texas Splash]

Yes, keep the FC up at SLAM level of 12 and maintain it until bedtime. Test in the morning before the light hits it and see what you get. The result will tell you what to do from there. Good luck!

 

[klb]

I did that last night and it went from 12.5 last night to 12 this morning and CC was 0.5. Water clear. Passed slam. Do I still need to raise back up to 12 again tonight?

 

[Texas Splash]

Sorry, no. I missed that along the way. If you passed - you passed. : What may have happened today is that the minimum CYA simply is not enough to keep the FC from burning off. You might find a CYA of 40 protects your FC better. As with any CYA though, simply bump it against the Chlorine/CYA Chart to ensure you are in the correct range. Hope that helps.

 

[klb]

Thank you. I am going to keep FC in range for CYA and raise CYA slowly. I don't want to raise too much.

 

[klb]

1st picture taken May 12 the day we started SLAM. We had been adding a little liquid chlorine and vacuuming to waste for a couple of days waiting on test kit. We passed SLAM May 19. 2nd picture is today. Our pool has never looked better. We are now adjusting to keeping everything in balance. We followed the expert instructions and it has worked well for us. I do not plan to go to pool store at all this season.

 

[Texas Splash]

That is some sweeeeeeeeet-looking water. Outstanding job.

 

[klb]

Having trouble with FC drop during the day. It drops anywhere from 5-7. I passed SLAM on 5/17. I have retested OCLT on 5/19 and 5/23 and passed both of those. Only 0.5 drop overnight with 0.5 CC. pH may be a little high at 7.8, will take care of that today. Added stabilizer 5/18. CYA 40 at last check 5/20. Running sand filter 24/7. Have skimmer sock. Pool crystal clear. Could it be related to weak bleach? Am I missing something? Just puzzled. Thanks

 

[klb]

See above post. Maybe it is leveling out. Only dropped 4 today.

 

[Texas Splash]

Losing 4 is right on the edge, but understandable. If the sun is getting stronger for you that could account for it. As it gets hotter you might find a CYA of 50 works better.