help! problem with iron stains

[leron85]

Hi everyone, I apologize for my terrible English, my name is Francesco and I am Italian and I live in Italy. I also wrote in your forum last season as I had problems with iron stains (even if I use mains water with low iron values) I tried ascorbic acid and oxalic acid last season, the stains disappeared but I had big problems with the chlorine level and as soon as I started to slowly add chlorine the stains came back. speaking with a technician it turned out that the problem is the iron bacteria in the pool and this year I decided to empty the pool (250 cubic meters), clean it completely with acid and after filling the pool before starting to add chlorine I used copper pentahydrated on the advice of a technician to kill the iron bacteria present in the water but when I started using chlorine the stains started to reappear (although in much smaller quantities than last season) does anyone have any new advice to give me? the same technician advised me to use oxalic acid in very small quantities (only on the stains), do a new copper treatment and then treat for a period only with active oxygen. Do you think that active oxygen could be a good solution?

 

[ajw22]

Copper treatments cause their own staining. Copper should never be added to a pool.

To clear copper stains requires the use of sulfamic acid then draining of the pool.

Copper in Pool Water - Further Reading

www.troublefreepool.com

There is no such a thing as iron "bacteria"! Iron is a metal. I suggest you do not ask that technician for any further advice and check here before you add things to your pool other then...

Recommended Pool Chemicals

Which should I buy? TFP's recommended pool chemicals are cheap, easy, and won't unbalance your pool water.

www.troublefreepool.com

 

[leron85]

I trattamenti con rame causano la propria colorazione. Il rame non dovrebbe mai essere aggiunto ad una piscina.

Per eliminare le macchie di rame è necessario l'uso di acido solfammico quindi lo svuotamento della piscina.

Copper in Pool Water - Further Reading

www.troublefreepool.com

Non esistono i “batteri” del ferro! Il ferro è un metallo. Ti suggerisco di non chiedere ulteriori consigli a quel tecnico e di controllare qui prima di aggiungere cose alla tua piscina oltre a...

Recommended Pool Chemicals

Which should I buy? TFP's recommended pool chemicals are cheap, easy, and won't unbalance your pool water.

www.troublefreepool.com

in realtà i batteri del ferro esistono perché ho un'amica che lavora in un laboratorio di chimica e me lo ha confermato. Ho utilizzato un alghicida a base di solfato di rame

 

[leron85]

I trattamenti con rame causano la propria colorazione. Il rame non dovrebbe mai essere aggiunto ad una piscina.

Per eliminare le macchie di rame è necessario l'uso di acido solfammico quindi lo svuotamento della piscina.

Copper in Pool Water - Further Reading

www.troublefreepool.com

Non esistono i “batteri” del ferro! Il ferro è un metallo. Ti suggerisco di non chiedere ulteriori consigli a quel tecnico e di controllare qui prima di aggiungere cose alla tua piscina oltre a...

Recommended Pool Chemicals

Which should I buy? TFP's recommended pool chemicals are cheap, easy, and won't unbalance your pool water.

www.troublefreepool.com

Allora come mi consiglieresti di gestire la situazione?

 

[JamesW]

in realtà i batteri del ferro esistono perché ho un'amica che lavora in un laboratorio di chimica e me lo ha confermato. Ho utilizzato un alghicida a base di solfato di rame

in reality iron bacteria exist because I have a friend who works in a chemistry laboratory and she confirmed this to me. I used a copper sulfate algaecide

Allora come mi consiglieresti di gestire la situazione?

So how would you recommend I handle the situation?

There are types of bacteria called "Iron Bacteria", but chlorine quickly kills bacteria, so the bacteria are not the issue.

The problem is iron, which will always oxidize in a pool and cause staining.

You have to remove the iron or keep it sequestered with a sequestering or chelating agent.

 

[paul1971]

Hi everyone, I apologize for my terrible English, my name is Francesco and I am Italian and I live in Italy. I also wrote in your forum last season as I had problems with iron stains (even if I use mains water with low iron values) I tried ascorbic acid and oxalic acid last season, the stains disappeared but I had big problems with the chlorine level and as soon as I started to slowly add chlorine the stains came back. speaking with a technician it turned out that the problem is the iron bacteria in the pool and this year I decided to empty the pool (250 cubic meters), clean it completely with acid and after filling the pool before starting to add chlorine I used copper pentahydrated on the advice of a technician to kill the iron bacteria present in the water but when I started using chlorine the stains started to reappear (although in much smaller quantities than last season) does anyone have any new advice to give me? the same technician advised me to use oxalic acid in very small quantities (only on the stains), do a new copper treatment and then treat for a period only with active oxygen. Do you think that active oxygen could be a good solution?

ciao, sei sicuro sia metallo?
Te lo chiedo perche' anche io pensavo di avere macchie di metallo e invece erano alghe. Comunque tranquillo si puo' sistemare.
La prima cosa che ti consiglio e' di testare il cloro (free chlorine) la sera e poi la mattina. Se il cloro scende piu di 1 livello secondo me sono alghe.