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How do you remove yellow stains from a gunite pool?

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Wiki User
2007-06-25 20:47:34
2007-06-25 20:47:34

Use a steal wire brush to brush off the yellow stains. Also, it might help to keep the chlorine level high.

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The 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.

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Bleach might do it. Also investigate the cause of the stains by observing pool users.

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Put a chlorine tablet or shock in an old sock and weight it to the stain. It should be gone in a few hours.

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Keep the acid content too high for a while and a lit of staining will tend to get bleached out.

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Gunite, cement does not rust.

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How often should you resurface a gunite pool?

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Being a 'salt water' pool has no influence on a) how you would remove the stains or b) what caused the stains - so treat the stains as you would in any type of pool. Determine what the stains are. Algae? Metal staining? etc. Your Pool Service or local Pool Shop should be able to help determine that and also recommend the appropriate treatment.

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Brown stains can be removed by doing a shock treatment for the pool and then scrubbing the stain. Enzyme based pool chemicals will also remove brown stains.

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Pebble sheen is the finish on the surface of a pool gunite is the cement that a pool is constructed from in other words you can finish a gunite pool with pebble sheen.

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I seriously doubt that the pool sweep is the problem here with your stains. You will have to describe the stains in order to get to the root of the problem. Are the stains: Rust color or brown? Black or gray? Green? Blue? Are the stains consistent or uniform? Are they all over the pool? Do they cover the whole pool or are they in small patches? Answer these questions and I may be able to tell you the cause. k

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Drain pool and clean with muriatic acid

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Replace the tiles. Makes it easier to clean the water line. Stains and oils will be permanent if you don't. k

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Either gunite or fiberglass will work well for an indoor pool.

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The stain in pool liners look unsightly and ruin the appearance of your pool. You can Remove the Pool Stains with the Brush, if the stains caused by metallic reactions then you can either use chlorine tablets or a commercial metal stain remover.

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building pool myself just want to contract out the gunite job are you interested

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My experience is that the stains will go away by themselves, through the effects of the chlorination of the water. Does not matter if the pool is a salt pool or fresh water pool. If the pool has a plaster finish, brushing the stains with a wire pool brush will speed up the process.

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You would go to a pool builder

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Let all the water out. Use any type of baking soda and scrub the walls. Then, remove the baking soda by washing down the walls with water.


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