Are Household Appliances Affected By A Hard Water Supply?
Saturday, July 24th, 2010The majority of homes are fed with a domestic water supply which provides “hard water”. Hard water is simply a designation which is applied to water which has a relatively high level of dissolved minerals in it. The two most important minerals are calcium and magnesium. There is absolutely no health risk associated with hard water - but it can have an impact on both the efficiency and lifespan of domestic appliances.
As a consequence of hard water, mineral deposits can be laid down in water pipes and a range of household appliances. Household appliances which use hot or boiling water are especially at risk as heating the water frees the minerals it contains which then solidify as “scale”. Coffee makers, kettles, steam irons, dishwashers and washing machines are all prone to this effect - as are household central heating systems and boilers.
There are a number of different variables which influence how much scale is generated. The temperature of the water is one of the strongest influencing factors on this process. More scale is produced at higher temperatures. Running dishwashers and washing machines at a lower temperature setting will reduce the amount of scale produced and help to ensure that these appliances continue to operate efficiently and have an extended working life. Using soaps and detergents which have an anti-scaling agent included will also help.
Using a lower water temperature with appliances such as steam irons, kettles and coffee makers isn’t very practical. Some kettles come with filters built in these days, which can prevent or reduce the incursion of harmful minerals (as well as improving the taste of hot drinks). Some modern irons incorporate specially designed, removable scale traps which make it easy to wash away any scale under a running tap. Other alternatives include periodically cleaning your appliances with special anti-scale chemicals.
Whilst there is no danger to health as a result of hard water, some people may dislike the taste it results in for either hot drinks or boiled and steamed food. On the other hand, there are those who swear that hard water makes better tasting tea than soft water. It’s a matter of personal taste at the end of the day. If the flavour of your food and drinks isn’t satisfactory, you can always use a water filter. These range from very cheap (but effective) jug filters, to under sink or even whole house filters. These are cheaper than you may think and are really quite simple to install.
It may seem like an inconvenience, but it’s well worth the effort to counter the effects of a hard water supply. In addition to the improved operational efficiency of your domestic appliances, use of the correct detergents and the selection of a lower operating temperature, combined with scale removal from time to time, will save you money by extending the life of your appliances.
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