klopt deze tabel een beetje
-------------------------------
Ideaal water--------------
Kraanwater----------------------
Osmosewater
Geleidbaarheid---------------250 tot 400 ms-------------600 tot 800 ms--------------------30 ms
GH----------------------------6 DH------------------------10 DH-------------------------------0
KH----------------------------4 / 5 DH--------------------8 DH--------------------------------0
NO2---------------------------0 mg/l----------------------0 mg/l------------------------------0
NO3---------------------------0,5 mg/l--------------------10 mg/l-----------------------------0
PO4---------------------------0,1 mg/l--------------------1-2 mg/l----------------------------0
Fe-----------------------------0,2 mg/l--------------------0 mg/l------------------------------0
CO2---------------------------20 mg/l---------------------0 mg/l------------------------------0
O2-----------------------------6 tot 10 mg/l---------------4 tot 6 mg/l------------------------4 tot 6 mg/l
pH-----------------------------6,8 tot 7,2------------------8------------------------------------6,8
De waarden van kraanwater zullen natuurlijk per regio verschillen.