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Frequently Asked Questions
What problem does a second tank solve?
The gap while the first regenerates.
A single tank cannot soften during it.
It goes offline or passes hard water.
For an hour or more each time.
Two tanks remove that window entirely.
How does the changeover work?
One vessel is always in service.
When it exhausts, the valve switches.
Supply moves to the second vessel.
And the first regenerates offline.
They share one brine tank.
Where is continuous soft water essential?
Wherever demand does not stop at night.
Laundries, hotels and process lines.
Bottling plants and boiler feeds.
Anywhere hard water would reach equipment.
Even briefly.
Does it use more salt?
Usually less, per litre softened.
It regenerates on volume, not on a clock.
A vessel goes when it is actually exhausted.
So salt tracks real consumption.
A timed unit regenerates regardless.
Is one worth it at home?
Rarely, on steady domestic demand.
A single tank can regenerate overnight.
When nobody is drawing water.
That covers the gap adequately.
Twin tanks earn their place elsewhere.
What does it cost in space?
Roughly twice the footprint.
Two vessels plus the brine tank.
And access to both for servicing.
Plant rooms usually have it.
Under a kitchen sink does not.
What is more likely to fail?
The changeover valve, being busier.
It switches service between vessels.
As well as running regeneration.
More function, more to go wrong.
It is a serviceable part.