Apply soda ash to the acid puddle scrubbing the mixture with a pool brush.
Citric acid wash for pools.
Mix it gently with a mixing stick if you need to.
Pump the mixture into a bowl using a submersible pump.
You will need to use 2 lb.
For citric acid for pools.
A citric acid wash is most effective on a swimming pool that has been cleaned with all debris removed after it is drained.
If it works an acid wash would be a good next step.
The acid wash is applied from a watering can used for flowers.
Pour water over any remaining.
9 kg of soda.
Spray down the sides of the pool and make sure the entire surface is wet.
When you get the ascorbic acid in the water you can turn on the pool pump and let the filters circulate the water for about a half hour.
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.
In your five gallon bucket add one gallon of acid to one gallon of water never the other way around.
Use a half a pound of vitamin c for every 10 000 gallons of water.
Dispose of what you pumped as the acid can kill frogs fish and plants.
If you are treating larger stains or decided to buy a liquid acid sprinkle the acid evenly around the pool.
Rinse out the bowl.
4 1 out of 5 stars 105.