![BWT Perla Hybrid Installation And Operating Manual Download Page 79](http://html1.mh-extra.com/html/bwt/perla-hybrid/perla-hybrid_installation-and-operating-manual_2836817079.webp)
79
EN
20 German Drinking Water Ordinance notice
Information in accordance with section 16 and section 21
of the German Drinking Water Ordinance
The drinking water in this building is treated as followed:
Type of treatment:
Partial softening
Metering
Product designation:
Installation location of the product:
Metering of silicate substances
For minimising the corrosiveness of drinking water and
preventing elevated concentrations of heavy metals
Silicate concentration of your water, approx
mg/l
Max. permitted addition in accordance with the German Drinking Water Ordinance: 15 mg/l
(calculated as SiO
2
)
Metering of phosphate substances
To minimise liming, corrosiveness of drinking water
and to prevent elevated concentrations of heavy metals
Phosphate concentration of your water, approx
mg/l
Max. permitted addition in accordance with the German Drinking Water Ordinance: 2.2 mg/l
(calculated as P)
Metering to set the pH value
For minimising the corrosiveness of drinking water and
preventing elevated concentrations of heavy metals
pH value of your water
Limits in accordance with the German Drinking Water Ordinance: greater than 6.5 and less than 9.5
Metering of sodium hypochlorite or chlorine dioxide solution
To increase sanitary properties of drinking water
Chlorine or
chlorine dioxide concentration
of your water, approx
mg/l
Max. permitted addition in accordance with the German Drinking Water Ordinance: 0.3 mg/l chlorine or 0.2 mg/l chlorine dioxide
Partial softening of drinking water by sodium ion replacement
To minimise liming
Hardness range of your water:
Soft (less than 8 4 °dH)
Moderate (8 4 °dH – 14 0 °dH)
Sodium concentration of your water, approx :
mg/l
Max. permitted concentration in accordance with the German Drinking Water Ordinance: 200 mg/l
Company:
Date of last maintenance: