The operation is based on natural water alkalinization. The redesigned filter cartridge, manufactured in Finland, contains domestic calcium. Low pH levels can cause, for instance, corrosion in copper pipes.
Indicative pH increase at different flow rates, liters per minute:
The lifespan depends on the water's properties and initial pH value. At pH 6, approximately 4,000 liters. Water properties affect practical lifespan; generally, lower pH reduces lifespan, while higher pH extends it.
For pH levels between 5.0 and 6.9.
The calcium-containing filter must be thoroughly flushed with plenty of water upon initial use. Flushing should be repeated several times.