Isle of Palms is on treated municipal water, so this is something we recommend selectively rather than as standard.
Living by the sea does not affect your tap water
Worth saying plainly, because people assume it must. The supply here is municipal and treated, and the salt in the air has nothing to do with what comes out of your taps.
What people actually notice
Chlorine taste is the common complaint, and a filter at the kitchen tap handles it for a fraction of the cost of a whole-house system. In a rental, a simple drinking filter is a small touch guests appreciate.
Where sediment filtration helps
In older villas and cottages with ageing pipework, a sediment filter protects taps and appliances from debris coming off the inside of those pipes.
Ask for a test first
Anyone recommending a large system for an island address without testing your water is working from a price list rather than from your property.