My pool doesn’t seem to do well after a big rain storm and loses most of its chlorine. Is it recommended to shock or add chlorine before or after a storm ??
Shock before or after a storm?
- Thread starter ja123
- Start date
Was wondering this myself regarding storms. How does quick heavy thunderstorms impact pool chemistry in general? Should you wait a certain amount of time after one to do your chem tests?
Saturn94
Bronze Supporter
- Mar 11, 2015
- 1,752
- Pool Size
- 20000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
The only time storms have a noticeable impact on my pool balance is if we get several inches or more of rain, requiring I pump excess water out. Even then, the impact isn’t that much.
In my experience, losing most of the chlorine after a storm is not normal.
In my experience, losing most of the chlorine after a storm is not normal.
Oly
Gold Supporter
A storm in my area means wind and that loads the pool with organic debris. I raise my FC before and after a storm.
Outside excessive rainfalls storms have minimal effect on water chemistry. When a normal spring storm routinely causes problems in a pool it typically indicates that the water chemistry is off and already teetering on the brink of an algae bloom. That's why many following pool store techniques think that a green pool after a storm is just a normal thing, they are just always one minor incident away from algae.
Agree. The only time I add shock is right before a hurricane or tropical storm. My CYA is low enough that adding shock won't affect much and I like to over chlorinate if I get excessive rain.
It's crazy that you read places that you should shock the pool once a week... Most people probably never shock at all once they get on the TFP method.
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