Aqua Medic Premium Line Serie Mode D'emploi page 9

Premium Line 90/150/300
Available spare parts: Please refer to www.aqua-medic.de.
The O-ring for sealing the membrane housing must be slid onto the membrane housing
before screwing the cap on.
4. Maintenance
- Flushing: In order to flush the membrane, only the flushing valve has to be opened. Then, the
water flows with high speed through the narrow channels in the membrane and takes most of
the residuals with it. This flushing also cleans the flushing valve itself.
After 15 - 20 minutes, the valve must be closed again. A minimum water flow (approx. 12 – 20 /
15 - 24 l/h) has to be guaranteed.
- Pre-filter: If the tap water is not extremely polluted, a yearly replacement of both pre-filters
will be sufficient. If the water is higher polluted, the filters have to be changed more often - as
required. If the pre-filter is blocked, the water production will slow down.
- Membrane: The membrane has a lifetime of several years. Afterwards, it has to be replaced.
- Flushing valve: The flushing valve is a part with limited lifetime. In case of a decrease of the
adjusted water flow, the valve is encrusted with calcium and can be cleaned using acid (e. g.
vinegar). If the water flow increases, the valve has to be replaced.
5. Failures
- Waste water flow rate is too high: Close the flushing valve. If this is not possible, the
flushing valve has to be replaced and the membrane power to be checked.
- Waste water flow rate is too low: Check if the pre-filter is blocked. The water pressure at
the pressure gauge behind the pre-filters must not be much lower (at the most 0.5 bar) than
the water supply pressure. Maybe change the pre-filter.
- Pure water flow rate is too low: Check the waste water flow rate. If it is to low too, change
the pre-filter.
- Tap water pressure is too low: If you are connected to a municipal water supply, you are not
able to have an influence on the water pressure. For the reverse osmosis unit, a minimum water
pressure of 3 bar is required.
- Module is blocked or used up: The membrane has to be replaced. As spare parts, all
standard „18" membranes with a daily capacity of 75 - 90 / 120 - 150 l can be used. Only TFC-
membranes made of Polyamide/Polysulfone should be used. We recommend to use original
Aqua Medic TFC-membranes only.
If you want to use a membrane with a different capacity, you also have to change the flushing
valve.
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