Do You Still Need a Water Softener if You Have a Whole-House Filter? Insights from a Pentair Water Softening Contractor in Westmont, Illinois

Many homeowners install whole-house filtration systems because they promise cleaner water from every tap. But a filtration system does not solve every water quality issue in the house. Even with a whole-house filtration system, you will still need a water softener to address hard water.

Below, this Pentair water softening contractor in Westmont, Illinois is going to explain the basics of whole-house filtration systems. We will also explain why filtration systems cannot replace a water softener in many homes.

What does a whole-house water filter remove?

Whole-house water filtration systems treat water before it reaches any faucet or appliance in the home. Contractors also call these systems point-of-entry (POE) systems because they treat water at the main entry point of the plumbing system.

Installers place these systems directly on the main water line where water first enters the home. The system forces all incoming water to pass through filtration media before it flows to sinks, showers, washing machines and other appliances.

Filtration systems remove many common water contaminants. These systems can capture sediment that can enter municipal or well water supplies. Many systems also reduce chlorine levels, thereby improving taste and odor in household water.

Some advanced filters can also target certain organic compounds or other impurities depending on the filter media used.

That said, whole-house filtration systems do not remove hardness minerals. Calcium and magnesium are dissolved in the water supply. This is how they can pass directly through most filtration materials without being captured.

Many homeowners discover this limitation after they continue seeing hard water symptoms in their homes. If you are researching water treatment options, you can always turn to your local Pentair water softening contractor in Westmont, Illinois for professional guidance.

Why do hardness minerals pass through water filters?

Hard water forms when groundwater dissolves minerals like calcium and magnesium from surrounding soil and rock. The water carries these minerals into municipal water systems or private wells.

These minerals stay dissolved in the water as charged particles called ions. Standard filtration systems cannot easily capture dissolved ions because the minerals remain suspended at the molecular level.

Most water filters physically trap particles or absorb certain contaminants within filtration media. Hardness minerals remain too small and too chemically stable for these filters to capture effectively.

Even when a home uses a whole-house filtration system, the hardness minerals continue flowing through the plumbing system. These minerals slowly form scale deposits as the water heats or evaporates.

Why do some homes need both filtration and water softening?

Many homes benefit from using both a filtration system and a water softener. Each system solves a different water quality issue, and both systems work best when they operate together.

A filtration system removes contaminants like sediment and chlorine. A water softener removes the hard water minerals that cause scale buildup and soap residue.

Pentair water softeners use ion exchange technology to remove calcium and magnesium from the water supply. The softener replaces hardness minerals with sodium or potassium ions before the water reaches the home’s plumbing system.

An experienced Pentair water softening contractor in Westmont, Illinois can evaluate the home’s water supply and recommend the right Pentair system to complement the existing filtration system. 

Looking for a Pentair water softening contractor in Westmont, Illinois?

If you’re ready to partner with the top-rated Pentair water softening contractor in Westmont, Illinois, Johnson Water Conditioning is just a call away. We can inspect your home’s water quality and recommend the right Pentair water softener to work alongside filtration systems. Contact us today to learn more.