Water Softeners

How Water Softeners Work

 

These work by directing your incoming water supply through a carefully designed resin bed. The calcium and magnesium ions that cause limescale stick to the resin beads and are replaced with harmless sodium ions. When the resin bed becomes saturated with calcium the system is regenerated by flushing it through with a brine solution. This clears away the calcium deposits, and recharges the resin with sodium ions. All ion exchange water softeners work in this way, but have different kinds of controls to regulate the regeneration process.



 

Time clock:

 

Traditionally these were the cheapest to buy, but the most expensive to run. The clock is set to regenerate the system every few days irrespective of how much water has been used.

 

Metered

 

This type of control measures how much water has been used in the home and decides when to regenerate automatically - usually at night when the household is asleep.

 

Metered with proportional brining:

 

This is the same as the previous system, except that it works out how much of resin bed needs to be regenerated and calculates the exact amount of brine the water softener will need to complete the process. This saves salt, water and money.