Choose by outcome
If the goal is measurable soft water and improved soap performance, compare ion-exchange systems. If avoiding salt and drain discharge matters more, evaluate a conditioner’s documented scale-control performance.
Verify product limits
Check required water chemistry, peak flow, media life, replacement cost and the exact written performance claim.
Ask for plain language
The proposal should say whether the device softens, filters or conditions—and how success will be measured after installation.
Questions
Make the next conversation clearer.
Will salt-free treatment test as soft water?+
Usually not. Many conditioners leave calcium and magnesium in the water, so a hardness test remains hard.
Which system uses less maintenance?+
That depends on the actual product. Compare salt refills, cleaning, media replacement and warranty requirements over ten years.