Okay I thought I finally had it but just read the current months newsletter and now I'm confused again.
I thought Calcium was a non issue for vinyl lined pools, but in the article about saltwater chlorine generators and stone degradation under Myth 1 fact B you write "Low pH levels can etch plaster and damage vinyl liner pools". Is this true?
I successfully made it through my first year with very low calcium. Can I continue to do so? I know pool equipment generally recommends the addition of calcium, but this site generally dismisses that statement for vinyl lined pools.
Thanks in advance for any feedback!