Use a steal wire brush to brush off the yellow stains. Also, it might help to keep the chlorine level high.
Wiki User
∙ 2007-06-25 20:47:34The yellow stains are most likely algae. Superchlorinate and lots of brushing until it is gone. Then brush again. You may want to clean the filter too.
acid wash pool
Muriatic Acid will get rust stains out of a Gunite Pool. To prevent rust, it is recommended to keep pH level of the water slightly acidic.
Bleach might do it. Also investigate the cause of the stains by observing pool users.
Put a chlorine tablet or shock in an old sock and weight it to the stain. It should be gone in a few hours.
Keep the acid content too high for a while and a lit of staining will tend to get bleached out.
NO.
Stain Magnet from GLB.
I have a fiberglass pool and I am constantly battling with iron stains. It is not impossible to remove the stains. I get brown stains in my pool and I treat them with jacks magic stain solution #1. Check out their website. They show different pictures of different types of stains. The stuff does remove the stains quickly, but it is expensive. Hope this helps.
Gunite, cement does not rust.
No. Gunite is concrete.
How often should you resurface a gunite pool?