Can I Use Any Salt in My Softener? Insights from a Pentair Water Softening Contractor in Wauconda, Illinois

If you have a water softener at home, you are probably aware that it runs on salt. But when it is time to restock on salt, what should you buy? Solar salt? Pellets? Crystals? Potassium? Does it even matter which one you choose?
It does. Below, this Pentair water softening contractor in Wauconda, Illinois is going to explain how the type of salt affects your softener’s performance.
Isn’t all salt the same? Not exactly.
Not all salts are made the same way. Some are very clean and dissolve fast, while others have tiny impurities that don’t fully break down. Over time, these impurities can collect inside your brine tank and form salt bridges or a crusty buildup that blocks the flow of brine water.
Pentair softeners work best with pure salt that dissolves smoothly and evenly. If you use low-quality salt or anything mixed with dirt and minerals, it can leave sludge at the bottom of the tank. That sludge can eventually force the softener to regenerate more frequently or reduce its ability to soften your water.
This is why a professional Pentair water softening contractor in Wauconda, Illinois will always recommend using high-purity salt specifically designed for your Pentair model.
Solar salt
Solar salt is produced by evaporating seawater, which leaves behind natural salt crystals. It is clean and easy to use.
Because it dissolves quickly, solar salt works well in Pentair softeners that use automatic regeneration. If your household water use changes (for example, when guests are staying over), solar salt can maintain a steady brine concentration without leaving excess residue.
Evaporated salt pellets
For the cleanest and most efficient option, evaporated salt pellets are the best choice. They are made through a process that strips out nearly all impurities, leaving you with salt that is over 99% pure sodium chloride.
Due to their purity, these pellets dissolve completely. This means that you will not get sludge at the bottom of your tank.
Pentair softeners, especially those with Autotrol 255 or 268 valves, run best with evaporated pellets. You will get a consistent brine solution every time the system regenerates, which will keep your water soft and your softener running smoothly.
Rock salt
Rock salt is cheap and readily available. But it is usually packed with minerals and dirt that don’t dissolve well.
When those impurities settle at the bottom of your brine tank, they form a thick, sludgy layer that can be very hard to clean. That buildup can even damage your Pentair softener’s sensors or injector valves.
Potassium chloride
Some homeowners prefer to skip sodium altogether and go with potassium chloride instead. It works almost the same way (recharging the resin bed during regeneration), but it is slightly less efficient.
It is a good option if you are watching your sodium intake or just want to avoid adding extra sodium to your water. That said, potassium chloride tends to cost more and can clump in humid conditions.
When in doubt, ask a professional.
Your local Pentair water softening contractor in Wauconda, Illinois can help you select the ideal salt for your specific softener and water quality. They can also check the brine tank for residue and adjust your regeneration settings if you decide to switch between different types of salt.
Looking for a Pentair water softening contractor in Wauconda, Illinois?
Are you ready to partner with a professional Pentair water softening contractor in Wauconda, Illinois? If so, you’ve come to the right place — Johnson Water Conditioning is the top choice. Our team can help you pick the best salt for your Pentair system and make sure everything functions optimally. Contact us today to get started.
Better Water for
a Better Life
