However if these stains are all over walls and floor everywhere the best course would be to drain the pool and acid wash the plaster carefully with a muriatic acid solution to remove the scale dirt deposits which is the problem in the first picture on the page without harming the plaster too much.
Cleaning plaster pool walls.
Plaster is a little bit harder to damage so you might even be able to use a wire bristled brush for tough deposits.
One of the biggest tasks you need to perform during the summer months is cleaning your pool.
Identify the type of wall.
If an algae bloom is bad enough that you can t.
Instead of dangerous acid washing.
Regular cleaning prevents the water from becoming murky from the formation of algae.
Frequent dusting during your normal weekly house cleaning.
Originally recorded may 20 2014.
When removing paint the porous texture of plaster walls does require that you be more gentle than with some other surfaces.
How to clean a concrete pool.
Plaster walls especially unpainted plaster or those painted with flat paints can absorb dust and dirt and appear dingy in a short time.
Make sure you are cleaning a genuine plaster wall.
Your principal concern when cleaning the wall should be protecting the paint job unless you are trying to remove the paint itself.
If you have green spots on your pool walls due to algae and hate brushing them because it doesn t work so well follow thi.
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.
How to acid wash a plaster pool surface.
Bottom line calcium buildup is nothing to ignore and just like all our pool problems it s easier to deal with if you stay on top of it with regular cleaning.
Cleaning a plaster wall is not radically different than cleaning other types of walls.
This is a relatively quick safe and inexpensive way to clean an empty in ground concrete plaster swimming pool using materials and tools you probably already have on hand.
A small swimming pool stain is usually caused by a metal object being left on the plaster bottom long enough to rust and leave a stain.
If your pool isn t properly cleaned and maintained algae can take over and adhere to the plaster surface.
Avoid using a vacuum cleaner or air blower.
The above steps work only for plaster walls.