Including filter system and high-performance Salinity filter.
Salinity refers to dissolved salts in your water, and when levels are higher you’ll often notice a salty or mineral-like flavor. You might also see more spotting on glassware, find soap takes more effort to lather, or detect differences between faucets. In Marathon’s tropical maritime environment—where coastal salt air and storm exposure can affect homes—salinity can vary by season, source (municipal, well, or cistern), or even from tap to tap, and it’s commonly most apparent in drinking and cooking water.
Higher salinity often shows up as elevated total dissolved solids (TDS), including sodium, chloride, and other minerals that may come from natural sources or from blending different supplies. In Marathon and the surrounding Monroe County islands, those dissolved salts can be a concern for fixtures and appliances over time and can make it harder to get consistently clean-tasting water at every faucet. If you’re managing a sodium-restricted diet or rely on water from a private well or cistern, it’s sensible to know what’s in your tap.
To reduce dissolved salts you need a method that actually rejects ions instead of just masking taste. For most homes, reverse osmosis is the most effective single-filter choice for lowering salinity and overall TDS because its semi-permeable membrane removes dissolved salts. Carbon filters can improve flavor and odor but don’t meaningfully cut salinity, so a properly sized RO system is the right starting point when your goal is less salty water.
A whole-house reverse osmosis installation treats water at the point of entry so showers, laundry, and every tap in your Marathon home benefit from reduced salinity. These systems usually include prefiltration to protect the RO membrane from sediment and chlorine and use storage/delivery components to keep flow practical for daily use. Because local salinity and household demand vary—especially in coastal neighborhoods like Key Colony Beach or Grassy Key—matching system capacity to your water and needs is important; Mr. Pure Water can assess your situation and recommend the right whole-house RO plan.