Water-treatment equipment is often discussed as though every system “filters” the same things. In reality, a softener, reverse-osmosis system and whole-home filter are designed for different concerns and may be used separately or together.
The right approach begins with the water source, test results and what the homeowner wants to change.
What a water softener is for
A conventional softener uses ion exchange to address hardness minerals. The practical goals are usually reducing scale formation and improving how water behaves with soap and fixtures.
A softener is not a universal contaminant-removal system. Other water concerns may require pretreatment or separate equipment.
What reverse osmosis is for
Reverse osmosis uses a membrane and is commonly installed for drinking and cooking water at a dedicated faucet. It normally includes prefiltration, a drain connection and either a storage tank or tankless configuration.
Whole-home reverse-osmosis systems are a different scale of project and may require pretreatment, storage and repressurization. They should not be confused with a typical under-sink system.
What whole-home filtration is for
Whole-home filters treat water as it enters the building. The media and equipment must be chosen for a defined concern such as sediment, chlorine-related taste or odour, iron, sulphur or another tested condition.
The phrase “whole-home filter” does not identify what the unit removes. Ask what media is used, what water condition it is intended to address and what maintenance is required.
- Define the water concern first
- Test private-well water before choosing treatment
- Check flow-rate requirements
- Plan bypass, drain and electrical needs
- Understand filter and media maintenance
A treatment train may use more than one device
For some water sources, equipment is arranged in stages so one process protects or supports the next. For example, sediment or hardness may need attention before a membrane system.
TruePipe can review plumbing and installation requirements for Excalibur Water softening, reverse-osmosis and whole-home treatment products.
Frequently Asked Questions
Does reverse osmosis soften all the water in a home?
A typical under-sink RO system treats water at one drinking-water faucet. It does not soften the entire home.
Can one filter solve every water concern?
Usually not. Treatment should be selected for specific tested conditions and the required flow.
Should municipal water be tested before treatment?
Testing may be useful when there is a specific concern. Municipal water-quality reports and the condition of the building plumbing should also be considered.
Discuss the Project with TruePipe
For plumbing work in TruePipe’s service area, provide photos, location details, access information and a description of the issue or planned project. Use the TruePipe contact page to begin the discussion.
This article provides general planning information. Site conditions, product requirements, permits and applicable codes should be confirmed for the specific property and project.
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