I cover using bulk ascorbic acid and also using natural chemistry stain free which is citric acid.
Citric acid for swimming pools.
This is a good treatment if your pool has a lot of staining and the spot cleaning is not an option.
Citric acid removes the stained area of a pool when applied by eating away the top layer of the pool s surface.
It does not harm a pool to have such a thin layer removed it simply clears away the stain.
Depending on the pool size and stain size another method besides treating the whole pool with citric acid is to treat the stain directly that is fill a literal sock with citric acid and put it directly on the stain initially with circulation off.
Use natural chemistry s metalfree and you have the ultimate 1 2 combination for stain fighting.
Ascorbic acid treatment this is how you use a large amount of ascorbic acid to treat staining in your entire pool.
After 12 hours brush and circulate.
Citric acid is a gentler stain remover than muriatic acid another form of acid used to remove stains and resurface swimming pool interiors.
Be sure ph is low and after cleaning return return water to normal chemical levels.
4 1 out of 5 stars 105.
Stainfree is an all natural citric acid product that removes metal staining on pool liners and finishes.
Bosh chemical vanish pool spa stain remover 2lbs natural safe citrus based works excellent on vinyl fiberglass and metals removes rust and other tough stains.