Cloudy blue green pool

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
11,990
Evans, Georgia
Why do you want your TA at 120?? Most folks are trying to lower it a bit from that......

You may have algae=green. Just because your FC is 7.5 *now* doesn't mean its always been so..... so either jump in to a SLAM process or do an Overnight Chlorine Loss Test.

SLAM Process
Overnight Chlorine Loss Test

The answer to green is almost always more chlorine!

Maddie :flower:
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
22,961
Laughlin, NV
A CC of zero is not indicative of no algae. CC is primarily created by the oxidation of ammonia based compounds by chlorine. Algae typically produces little to no CC when oxidized. Also, CC rapidly burns off when UV hits the surface of the pool.

You need to follow the SLAM Process. Lower your pH to 7.2 and raise your FC to 28 ppm and maintain that until the pool is clear and you pass the Overnight Chlorine Loss Test