Why is the bottom of my salt water pool discolored?
As the salt lays on the surface of the pool, the ionic strength in that area goes way up, which causes a migration of calcium salts to pass through the cement itself and bring it to the surface. And that can cause a discoloration. This is especially a problem on colored plaster finishes.
Why is the cement on my Pool discoloring?
It’s typically more common during the curing of the material. As the salt lays on the surface of the pool, the ionic strength in that area goes way up, which causes a migration of calcium salts to pass through the cement itself and bring it to the surface. And that can cause a discoloration. This is especially a problem on colored plaster finishes.
What can cause a stain on a plaster swimming pool?
Most metals, when subjected to swimming pool water chemicals, will react and leave a stain where they were in contact with the pool’s plaster. The most common objects to stain swimming pools are soda or beer cans, pop tops, and coins. These items can cause a stain as quickly as overnight.
Can a salt water pool be corrosive to fresh water?
Besides sealing the stone, it is also advisable and an added precaution to hose down the coping at the end of any swim day with fresh water. Although the salt water in the pool may not be corrosive at levels of 3000-3500 ppm, when that water hits the coping and evaporates, it leaves pure salt behind.
Most metals, when subjected to swimming pool water chemicals, will react and leave a stain where they were in contact with the pool’s plaster. The most common objects to stain swimming pools are soda or beer cans, pop tops, and coins. These items can cause a stain as quickly as overnight.
As the salt lays on the surface of the pool, the ionic strength in that area goes way up, which causes a migration of calcium salts to pass through the cement itself and bring it to the surface. And that can cause a discoloration. This is especially a problem on colored plaster finishes.
It’s typically more common during the curing of the material. As the salt lays on the surface of the pool, the ionic strength in that area goes way up, which causes a migration of calcium salts to pass through the cement itself and bring it to the surface. And that can cause a discoloration. This is especially a problem on colored plaster finishes.
Besides sealing the stone, it is also advisable and an added precaution to hose down the coping at the end of any swim day with fresh water. Although the salt water in the pool may not be corrosive at levels of 3000-3500 ppm, when that water hits the coping and evaporates, it leaves pure salt behind.
