- Jan 7, 2012
- 2,122
- Pool Size
- 21000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
If your CYA is 50, you're well above SLAM FC. Turn the SWCG off and add some hydrogen peroxide to lower your FC.
Is 4 drops of R0014 the de-facto for pH?
- Thread starter ketofol
- Start date
Is there any effects to riding it out and letting it naturally drop if it’s not being used?
Another way you can raise the CYA to the 70 range with 4 lbs CYA and the the slam level is 28 so then the FC needs to drop down to that level which should happen in a day or two being it's unprotected.
1) there's alot of ways to skin this cat.
2) if you raise the CYA so the FC is appropriate, you'll have to maintain that higher FC going forward if SLAMing. If not SLAMing then you're just bumping the CYA a little early before the peak season hits.
3) there is risk to the liner by having the higher FC taking its sweet time to drop with low UV loss right now, but Mustard Algae protocol is to raise FC to 60% of the CYA (30 FC for 50 CYA) and let it drop naturally after 24 hours so IMO, it's currently no worse than the MA recommendation.
2) if you raise the CYA so the FC is appropriate, you'll have to maintain that higher FC going forward if SLAMing. If not SLAMing then you're just bumping the CYA a little early before the peak season hits.
3) there is risk to the liner by having the higher FC taking its sweet time to drop with low UV loss right now, but Mustard Algae protocol is to raise FC to 60% of the CYA (30 FC for 50 CYA) and let it drop naturally after 24 hours so IMO, it's currently no worse than the MA recommendation.
- Jul 21, 2013
- 65,059
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
I'd say after the next 24 hours turn the cell on very low so you'll slide in to where you want to land.
Jaimslaw
LifeTime Supporter
Agreed… 15 or prolly above (being evident based on the FC test color being as dark as what a urine sample from Keith Richards would look like). I accidentally let my ph drift that high one winter when I forgot to dial back both my pump run time and the T-15 salt cell run time, during a long spell of low water temps that were just barely above the temp that would have auto turned off the salt cell output.