The brown stain means you have iron in your pool water.
What causes brown stains on pool steps.
Vacuum out any iron particles that settle to the bottom of your pool during this.
Get your free chlorine to 0 0ppm by not adding more chlorine this might take a few hours or days depending on the level of fc in your water.
If it s closer to a brown black and is found on the sides of the pool as well then you might be looking at metal.
If there are rust colored stains on the pool wall below a ladder the source is probably a metal and you should examine the ladder for corrosion too.
When the iron concentration is too high it leads to brown water discolouration it is imperative that this iron concentration is reduced to under 0 2 mg l otherwise air oxidation could cause iron oxides to build up resulting in brown stains.
Take care when putting anything in the water to clean the stains that could change the chemistry of the water or be unsafe for swimmers but there are several ways to remove pool step stains without causing damage to the surface or the water.
And brown stains concentrated on the bottom can likely be attributed to dirt stains typically enhanced by calcium buildup.
For the copper brown stains in salt water pool you have to ensure that the chlorine level must not be above 3 0 ppm and the ph level must be within 6 8 to 7 2.
The first step to deal with organic materials is to shock your pool and scrub it.
Stains are usually caused by algae or chemicals in the water such as trace metals.
It only takes the copper from the size of a penny to be oxidized in your pool and cause major stains.
Raise the ph level back to between 7 2 and 7 8 and then resume your regular chlorination routine.
Lower the pool s ph level to 6 8 and then add one quart of iron remover for every 5 000 gallons of pool water.
Vinyl is another pool finish that causes trouble.
Vinyl is more resilient when it comes to staining but it s not immune.
Next steps treating each and every stain is different for pools.
When parts of the pool start to become stained or discolored it is most noticeable on the white areas.
Pool steps can leave stains and rust on the finish and age can take a toll on the finish.
While this can happen seemingly overnight if you take steps.
It might not take much for white plastic such as intake and jet covers light fixtures and ladder anchors to begin to discolor.
The most common blemish however is usually fading caused by sun damage and tears caused by equipment or debris in the pool.
The first cause is the most common culprit of brown stains in the swimming pool.