Hortipray® anticalc:
continuous and uniform irrigation
When hard-water is used for fertigation, it easily can result in unequal
irrigation. Forming of deposits will introduce scaling of the irrigation
lines and clogging of drippers.
Anticalc against hard water deposits
Hard water contains in general high calcium (Ca
2+
), magnesium (Mg
2+
) and bicarbonate
(HCO
3-
) content, in combination with higher pH levels.
Fertigation to plants includes nutrients to be added to the irrigation water via
fertilisers like MAP (monoammonium phosphate NH
4
H
2
PO
4
), MKP (monopotassium
phosphate KH
2
PO
4
), Magnesium Sulphate (MgSO
4
), Potassium Sulphate (K
2
SO
4
),
Potassium Nitrate (KNO
3
) …
Calcium and magnesium in the irrigation water, combined with phosphates and/or
sulphates from the different fertilisers can form insoluble sediments.
Possible reactions which cause clogging of the system :
Calcium and phosphate can form insoluble calcium phosphates (CaHPO
4
)
Calcium and bicarbonates can form calcium carbonates (CaCO
3
)
Magnesium and phosphate can form insoluble magnesium phosphates (MgHPO
4
)
Iron and phosphate can form insoluble iron phosphates (FePO
4
)
Calcium and sulphates form insoluble calcium sulphate (CaSO
4
)
For these reasons we also use 2 concentrated fertiliser tanks (A/B): one for calcium
(and magnesium nitrate) fertilisers and one for phosphate and sulphate fertilisers.
Of course the forming of the deposits depends also on pH and total concentration
of elements.
1 3,4