Hi all, Last year I was dealing with 100+ CYA levels. I'm happy to say that through several gradual water replacements, that is no longer an issue. I just opened the pool yesterday. Today I did a test and my CYA is <30. What is the recommended FC level for a CYA of 30? Do I need to raise the CYA a little?
CYA to FC levels
- Thread starter kypovan
- Start date
Hi 
Here is the link to help you check your target numbers. Pool School - Chlorine / CYA Chart
You probably do want to raise your CYA take a look here: Pool School - Recommended Levels
Here is the link to help you check your target numbers. Pool School - Chlorine / CYA Chart
You probably do want to raise your CYA take a look here: Pool School - Recommended Levels
You decision to raise the CYA will be primarily based on sun exposure of the pool during the summer.
Does you pool get a lot of direct sun all day long? If yes, then you may want to bring the CYA up.
If your pool is more shaded and doesn't get a huge amount of direct sun then 30 may be OK.
Does you pool get a lot of direct sun all day long? If yes, then you may want to bring the CYA up.
If your pool is more shaded and doesn't get a huge amount of direct sun then 30 may be OK.
- Jun 22, 2014
- 48,074
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Yeah, if it appears to be below 30, and as Aimee already noted I would raise it slightly as well. That way you know the FC is receiving good protection from the sun. If your pH is not too low, you could actually use a couple tabs if you wanted. Surprise! You won't hear that from us often (tabs), but in your case for a one-time thing it's an option. Just don't make it a habit. Otherwise, simply add a little granular stabilizer to ensure your CYA is at least at 30.
Have a nice weekend.
Otherwise, simply add a little granular stabilizer to ensure your CYA is at least at 30.Have a nice weekend.
Sorry all. I forgot to come back here. My water is clear and pretty. Though if I forget a day it starts to get cloudy, after a bit of bleach, it clears right up.
I have a friend with a pool that uses tabs. So maybe I'll just go get one from her to use and see what it does. The pool is mostly in direct sun during the day.
I have a friend with a pool that uses tabs. So maybe I'll just go get one from her to use and see what it does. The pool is mostly in direct sun during the day.
It really should not get cloudy that quickly. That makes me think that you might still have algae growing in your water. Have you done the OCLT?
