I am using an Aquapure 1400 system in my 12,000 gallon plaster pool.
I seem to have a significant amount of build-up, (calcium??) in the salt cell.
A pool service guy reccomended that I soak the cell in a bucket for water/acid mixture to clean it.

Is this the reccomended method to keep the cell working well?
How much acid should I be using in the soaking solution?
How long should I soak it, and how often is reccomended?

Thanks in advance for your help
Mike