I've read different places that low alkalinity acts like aggressive water and can be corrosive to pool equipment.
I have a few questions about this.
1. Is this true? and What is the process and how does low alkalinity do this?
2. Is this speaking about Total Alkalinity, or Carbonate Alkalinity?
3. What are the minimum levels of TA or carbonate Alkalinity to mitigate this in a pool or spa?