Cya test

Jsf721

Gold Supporter
Jun 24, 2022
404
Long Island, NY
Pool Size
38000
Surface
Vinyl
Chlorine
Liquid Chlorine
Is this accurate if it’s overcast out. Getting pool ready for a fun busy weekend with lots of friends.

Plan on getting out to test mid day Friday. Weather calls overcast /rain.

Thanks
 
Yes, even overcast is ok. Best if you are outdoors, even overcast is better than indoors.

Remember, FC is safe, even up to SLAM level. If you have any question about CYA level, raise your FC above target range for your CYA, to protect from any issue due to FC demand (lots of swimmers etc.)

Your CYA tested 70, 3 days ago...it will not change in 3 days. FC up to 28 is perfectly safe for people and pool.