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Ecosoft RObust COFFEE direct flow reverse osmosis system
Expect optimised water quality and consistent flavours in every drink with this system.
Technical Information
Parameters
| Parameter | Specification |
| Flow capacity | 70-75 L/h |
| Water consumption | 140–150 L/h |
| Waste water | 70-75 L/h |
| Inlet water pressure | 2-5 bar |
| Electrical requirement | 100-240 V, 50-60 Hz |
| Power consumption | 0,08 kW |
System Components
- Assembled filter
- Pre–filters and post–filter
- Reverse osmosis membrane
- Drain saddle
- Installation fitting set
- Purified water faucet
- Set of tubes
- Service wrench
Source water requirements
| Parameter | Specification |
| pH | 6.5–8.5 |
| Total dissolved solids (TDS) | <150–500 ppm |
| Hardness | <100–400 ppm CaCO₃ |
| Chlorine | ≤0.5 ppm |
| Iron | ≤0.3 ppm |
| Manganese | ≤0.05 ppm |
| Chemical oxygen demand |
≤5 ppm O₂ |
| Total microbial count | ≤100 CFU/mL |
| Coliform index | None |
Service & maintenance
The RObust COFFEE direct flow reverse osmosis filter is designed for cold water purification only.
Pressure monitoring
The front panel features two pressure gauges:
- Inlet pressure gauge – shows pressure after the pre-filters.
- Pump pressure gauge
– shows pressure after the membrane block.

Pre-filtration cartridges
Replace pre-filters after 3,000 litres of water filtration or at least every 3 months.
If the pressure after the pre-filters drops below 1 bar, the cartridges may be clogged.
Delaying replacement may damage or reduce the lifespan of the membrane.
Reverse osmosis membrane
With a significant drop in system performance, replacement of reverse osmosis membranes is required. Replace after filtering 30,000 liters or at least once per year if filtration speed decreases.
Post-filtration cartridge
Replace if taste deteriorates or odour appears, after 5,000 litres or at least every 3 months. Important: Replace all cartridges together as a set.
Downtime maintenance
If unused for over 2 weeks, disinfect before resuming use (procedure in the user manual).
- Compatible replacement solutions
RObust COFFEE Set of 4 Replacement Filters
FAQ
Do your filtration products achieve SCA-compliant water for coffee making?
Yes, you can achieve SCA-compliant water with our products.
Our direct flow reverse osmosis system, RObust COFFEE, was specifically designed for coffee preparation and delivers water that meets SCA standards.
Which TDS do I need for the perfect brew and can I achieve it with Ecosoft?
Yes, Ecosoft water treatment systems can help you reach the TDS levels recommended by the SCA.
Do I need to use a tank with your water purification systems in my café?
While it’s not strictly necessary to use a tank with our water filtration systems, we do recommend it.
What TDS levels can I achieve in my café with your water purification systems?
The exact TDS levels vary by product:



