The right-sized softener for a low-use home. For one or two people, a 32k-grain system like the Aquasure Harmony beats an oversized 48k+ unit, it regenerates more often, which keeps the resin fresh and prevents bacteria buildup.
For low water usage, get a smaller-capacity softener, something like 24,000 to 32,000 grains instead of the typical 48,000+ systems. The Aquasure Harmony 32k runs around $400-500 and, because it regenerates more often with your usage, it keeps the resin from sitting stagnant, which is what prevents bacteria buildup in an oversized unit.
You can also set it to regenerate on a time-based schedule, say every five to seven days, instead of purely on usage. That keeps the resin fresh even when you're not using much water.
No, an oversized unit regenerates too rarely and the resin goes stale. Match the grain capacity to your actual usage.
For low use, a time-based schedule every 5-7 days keeps the resin fresher than usage-only triggering.
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