Swii'Flo
-
USER'S GUIDE
- EUG
ROXELL - 022 - 1020
1
WATER QUALITY
Warning
The health of the animals depends on the quality of their daily drinking water.
The water quality depends on:
The phosphate, nitride, nitrite, chloride, iron, calcium and other concentrations.
The deposits in the lines.
The administration of medication.
Cleaning and disinfection.
Have the water checked at regular intervals!
Maximum allowable concentration:
Ammonia
< 1 mg/l
(3.78mg/GAL)
Sulfates
< 100 mg/l
(378mg/GAL)
Chlorides
< 200 mg/l
(757mg/GAL)
Iron
< 0,2 mg/l
(0.76mg/GAL)
Phosphates
< 0,01 mg/l
(0.038mg/GAL)
Salt
< 1 mg/l
(3.78mg/GAL)
Manganese
< 0,1 mg/l
(0.38mg/GAL)
pH-value
5-8
Nitrate
< 0,25 mg/l
(0.95mg/GAL)
Hardness
(
_
DH)
<15
Nitrite
< 0,1 mg/l
(0.38mg/GAL)
Source: European Water Framework Directive 2000/60/EC
Phosphates/Nitrogens:
Algal growth:
Algae are organisms that use carbon dioxide as source of carbon for the production of new cell material. The
required energy is provided by sunlight.
Algae blooms occur in standing or slowly moving water, usually having a high phosphate and nitrogen load
(ammonia and nitrate).
Optimal growth temperature for algae:
18-45°C, pH value: 5-8.
Algae death due to lack of light and/or nutrients leads to mineralization by bacteria with oxygen consumption.
Impact on
water
pH increase due to large amounts of carbon dioxide that are extracted from the water.
Impact on
system
Cause: Loosened micro culture substances.
Effect: Valve/nipples leakages.
Action
Remove deposits using stabilized hydrogen peroxide (H
2
O
2
) based products.
Nitrate/Nitrite:
Nitrate concentration > 0.25 mg/l: sandy soils with intensive livestock farming.
Ammonia concentration > 1 mg/l: in peaty soils.
Water from these soils usually has higher nitrite content. Unfit for consumption!
Impact on health
Danger
Direct consumption of nitrite is deadly!
Nitrate is converted to ammonia in the body. One of the intermediate compounds is
nitrite.
When the chemical reaction is not completed (for some time), death ensues.
Action
Nitrate concentration
≤
0.25 mg/l / Nitrite concentration
≤
0.1 mg/l!
