Which type should you buy?
A salt-based softener is the only one of the two that removes hardness minerals from your water. A salt-free conditioner leaves them in but changes how they behave, so less scale sticks. If you want genuinely soft water, choose salt-based. Choose salt-free if you cannot add salt, have no drain nearby, or specifically want the minerals left in.
Last updated 1 October 2026.
Side by side
| Salt-based softener | Salt-free conditioner | |
|---|---|---|
| What it does | Removes hardness minerals by ion exchange | Changes how hardness minerals behave so they are less likely to stick |
| Removes hardness? | Yes | No, the minerals stay in the water |
| Slippery soft-water feel | Yes | No |
| Scale on fixtures | Stops it at the source | Reduces how much adheres |
| Ongoing work | Add salt periodically | No salt to add |
| Drain and power | Needs a drain and power to regenerate | Generally neither |
Who each one suits
Salt-based suits homes with real hardness symptoms: scale on fixtures, spotted glassware, soap that will not lather, water heaters wearing out early. It is the system most Metro Detroit homes on city water end up with.
Salt-free suits homes where adding salt is impractical, where there is no drain for regeneration, or where someone wants the mineral content left in the water. It reduces scale adhesion rather than removing hardness, and the water will not feel soft.
We install both. On the call we will tell you which one your symptoms actually call for, and if the honest answer is that you do not need either, we will say that too.
Common questions
Does a salt-free conditioner really soften water?
Not in the strict sense. It does not remove calcium and magnesium, so the water is not soft; it changes how those minerals behave so less scale adheres to surfaces.
Will salt-free stop my spotted glassware?
Usually not completely. The minerals are still in the water, so they can still leave spots as it dries. Removing hardness is what fixes spotting.
Is salt-free better for the environment?
It uses no salt and does not discharge to a drain when regenerating, which some homeowners prefer. The trade-off is that hardness stays in the water.
Do I have to add salt every month with a salt-based system?
No. How often depends on your water and your household's usage. Most homes top up the brine tank every few months, and we show you how on the day of install.
Which one do you recommend?
It depends on your symptoms and your plumbing, not on a preference of ours. We sell both and we will tell you on the call which one fits, including when the answer is neither.