Dennerle Osmose Compact 130 Notice D'emploi page 18

4 Quality of the osmosis water
The Dennerle osmosis system reduces harmful substances in tap water such as heavy metals, nitrate, phosphate,
silicate and pesticides as well as hardness elements and salts by at least 95 %. Osmosis water is therefore very
soft and virtually free of any harmful substances.
Total hardness and conductivity of the osmosis water depend on the tap water:
Tap water
Conductivity μS/cm
1,000
500
300
*acc. to H.-J. KRAUSE, Manual of Aquarium Water
5 Using the osmosis water
Osmosis water is very pure and therefore contains practically no hardness at all, which is necessary to buffer the
pH value. For this reason osmosis water should always be set to the required hardness in the aquarium before
use. To do so, you can mix it with tap water, provided that the tap water does not contain any harmful
substances (e.g. copper, nitrate, phosphate).
The better and safer option is to specifically increase the hardness of the osmosis water using Dennerle Osmose
ReMineral . This enables you to set the water hardness and mineral content precisely according to the needs of
+
your aquarium fish. Dennerle uses only highly pure mineral salts of pharmaceutical quality.
Recommended water values:
Fish
Discus
Tropical community aquarium with neons, scalares, long-
whiskered catfish, etc.
Malawi Cichlids
Tanganyika Cichlids
Please consult the relevant specialist literature to find out about the care needs of specific fish or consult your local pet
specialist.
6 Turning off the system
• The system can also be automatically deactivated using a standard solenoid valve, which can be installed
subsequently in the hose between the tap and the active carbon filter
• We recommend using the system at least once a week for 30 minutes. If the system has not been used
for a period of more than two weeks, the osmosis water should be run down the drain for approx. 1/4 hour at
start-up. This will flush out any bacteria that may have got into the system.
• If the system not used for longer periods, please ensure that the membrane is not allowed to dry out. To do this,
close the hose ends for osmosis water and residual water with the rubber plugs provided.
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Osmosis water at 95 % retention of all harmful substances
Total hardness* °d
33
16
10
Conductivity μS/cm
50
25
15
Total hardness
.
2
Total hardness* °d
1.6
0.8
0.5
Carbonate hardness
3 - 5 °d
4 - 7 °d
3 - 6 °d
8 - 12 °d
1 - 3 °d
2 - 4 °d
5 - 8 °d
16 - 18 °d