I have an in-ground 30,000 gallon pool that has gradually been accumulating reddish iron stains over the past four years- when I put a new liner in.
To make a long story short, I think I will "shock" it with citric acid. I have read that the effect is almost overnight. I am aware that the pH has to be corrected after the shock before swimming in it.
Has anyone done this? Does the vinyl require a good brushing before restoring the pH?
What sort of citric acid should I use? I bought a gallon of concentrated citric acid cleaner at the local hardware store and used it up cleaning my filter cartridges. Yes, I am a cheap guy and want to stay away from pool suppliers. So what type should I buy, and how much of it should I use?
For increasing the pH, I have been using plain A&H baking soda. Any problem with that?
First post and thanks in advance!
To make a long story short, I think I will "shock" it with citric acid. I have read that the effect is almost overnight. I am aware that the pH has to be corrected after the shock before swimming in it.
Has anyone done this? Does the vinyl require a good brushing before restoring the pH?
What sort of citric acid should I use? I bought a gallon of concentrated citric acid cleaner at the local hardware store and used it up cleaning my filter cartridges. Yes, I am a cheap guy and want to stay away from pool suppliers. So what type should I buy, and how much of it should I use?
For increasing the pH, I have been using plain A&H baking soda. Any problem with that?
First post and thanks in advance!