What type of surface is it? Concrete, Vinyl or fiberglass? If you have a vinyl or fiberglass pool and it is rough it is probably calcium that has precipitated out of the water you will need to have your pool water analyzed by a professional swimming pool company. If your pool is concrete it could be calcium also or it could be an etching of the concrete both are related to water chemistry and the same professional analysis would need to be performed to resolve the issue.
All swim clubs are different. Please check with your local pool.
Scratching the inside of the vessel with a glass rod provides rough surfaces for crystals to form and grow. These rough surfaces serve as nucleation sites for the dissolved compound, promoting the formation of new crystals. This process is known as "seeding" and helps induce recrystallization by creating a template for crystal growth.
A common chemical used to remove minerals from well water added to a new vinyl pool is a sequestering agent, such as a metal sequestrant. This helps prevent staining and scaling on the pool surfaces caused by minerals in the water. Be sure to follow the manufacturer's instructions for proper dosage and application.
i dont know them all but there is one in the pool window its a igloo!
What about "sweep a new pool surface"?
No, they don't.
It is chlorine reacting with the metals in your pool water.
New Zealand rough skate was created in 1841.
Yes there is no need to drain a chlorinated pool to change it to salt water pool all you have to do is add the salt install the new equipment and run it as usual.
Yes as long as the above ground pool walls aren't rusted and all the parts are there its easily removed and relocated. You will need a new liner.
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you need a new ignition control module