What does nickel in water mean in practice?
Elevated levels in the first sample after standstill may indicate fittings, fittings or coatings in contact with water.
When does it matter?
Taste and color do not allow to assess the concentration, therefore testing of the stagnant sample and after rinsing is necessary.
Which solutions are related to it?
First, the source of metal migration is removed; for nickel in raw water, appropriate ion exchange or RO is used.