I use a 2 gallon plastic container with a sprinkler head on it like you use to.
Copper sulfate in swimming pools.
Draining the pool and washing down with a weak hydrochloric acid solution will remove the stains.
Copper based algaecides and algaestats are the commonest source of copper salts for pools but copper sulphate is also a preventative treatment and an effective cure for many algae attacks.
Copper sulfate otherwise known as bluestone is sometimes used in swimming pools as an algaecide.
Copper salts react with chlorine to produce cupric oxide and and may cause grey black stains on pool surfaces.
Copper sulphate whilst being an excellent algaecide will not sanitise disinfect your pool water.
That s where the chlorine comes in or you could use hydrogen peroxide affil.
The american journal of public health recommends using copper sulfate in swimming pools only as a method to control growth of algae.
It destroys algae and bacteria caused by growing algae in swimming pools in addition to preventing athlete s foot a fungal infection that grows in between the toes in warm climates such as an indoor swimming pool.
Copper sulfate is also used in order to help with public health and safety.
It s also much cheaper than proprietary chemicals.
Link to product info on amazon it will sanitise the water and won t stain the pool it has the added benefit of being harmless to the ozone layer it breaks down into hydrogen and oxygen.
Make sure you mix the copper sulfate with water in a plastic container make sure the blue crystals are dissolved.
This reaction is known as hexaaquacopper.
Copper sulfate does not eliminate the need for chlorine bromine or other pool sanitizers.