I've read that you need to add calcium to the pool if it is plaster. My pool is painted. Do I still need the calcium?
Painted pool - do I still need to add calcium?
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That's after putting in about 2-25 lb containers of Hardness Plus from Leslie's over the course of the last 4 weeks or so.
I believe you have enough. Your pool is not really a masonry pool once you paint the masonry. I think it's still a pretty good idea to have some in there and you are not quite to what we suggest (250-400) for masonry pools but close enough for your situation.
painted pool finish is weaker than plaster
if you let the csi go negative at all your paint will chalk
needs to be kept slightly positive +0.1 to +0.3
if you let the csi go negative at all your paint will chalk
needs to be kept slightly positive +0.1 to +0.3
A painted pool will chalk regardless of any attempt to prevent it with pool chemistry. It simply chalks.....they all do.
Wouldn't the recommendation also depend on the age/condition of the paint? For example, we sometimes swim in a family member's pool - the pool is old, as is the OP's pool. The paint on the concrete is younger than the pool itself, but, judging by appearance, it's hard to believe the paint is providing much protection to the underlying concrete...
