System two columns alternating — soft water without interruption, even during regeneration. From 2×38,5 to 2×300 lt.
System two columns alternating — soft water without interruption, even during regeneration. From 2×38,5 to 2×300 lt.
Every simple softener has a blind spot: while it is regenerating, does not provide soft water. In a home this is solved by programming the regeneration for three in the morning. In a hotel, factory or laundry that works twenty-four hours, it is not solved. The Dual system has two alternating columns: as one regenerates, the other provides — the flow never stops. Scale from 2 × 38,5 to 2 × 300 liters, with 1″ connection. It is the only correct solution where interruption is not acceptable.
| CODE | DESCRIPTION |
|---|---|
| 203.10.73 | 2 × 38,5 lt · 1" connection |
| 203.10.74 | 2 × 60 lt · 1" connection |
| 203.10.75 | 2 × 80 lt · 1" connection |
| 203.10.76 | 2 × 100 lt · 1" connection |
| 203.10.77 | 2 × 130 lt · 1" connection |
| 203.10.78 | 2 × 160 lt · 1" connection |
| 203.10.79 | 2 × 200 lt · 2" connection |
| 203.10.80 | 2 × 300 lt · 2" connection |
The systems Dual is the solution where interruption of soft water supply is not allowed: hotels, production units, laundries. While one column is regenerating, the second one continues to produce.
The water passes through a column of ion-exchange resin, which traps calcium and magnesium ions — the salts that cause scale — and replaces them with sodium. When the resin becomes saturated, the head automatically performs a regeneration with brine from the salt reservoir.
It depends on the hardness of the water, the daily consumption and the number of people. For example, a 4-person house with medium hardness is covered by 20–25 liters of resin. Send us a water analysis and we will recommend the appropriate model.
The chronometric regenerates at fixed intervals. The volumetric measures the liters passed and regenerates only when needed, saving salt and water — it is the appropriate choice where consumption is not constant.
Practically every 1–2 months in a domestic installation, depending on hardness and consumption. The container should never be completely empty, as this stops the regeneration of the resin.
With clean feed water and proper operation, 8–10 years. Chlorine, iron, and suspended solids reduce the duration — therefore pre-filtration before the softener is recommended.
The water becomes slightly saltier as calcium is replaced by sodium. For drinking water we recommend a reverse osmosis system in the sink, along with a softener for the rest of the network.
We are exclusively aimed at professionals: plumbers, technicians, shops and installers. Request a quote and we will send you a wholesale price list.
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17–20 November 2026 · Eurexpo Lyon, France
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