Water hardness is an all-too-common issue that torments households all over the world. However, some have it worse than others.
But before you decide to up and leave your neighbourhood altogether, CDL Plumbing tells us that there is a less drastic route to take: water softeners.
One hurdle is deciding between salt-based and salt-free water softeners. Let’s try to determine which option is better for you.
Water hardness is a quantitative property of the water you use in your home. It refers to the measure of natural minerals and other dissolved compounds present in the water, such as calcium, magnesium, and metallic elements.
But why is it called hardness?
Implicit in this term is the fact that certain types of water rendered it very difficult to use for washing. In contrast, soft water is water that is much easier to work with.
Different areas will have different levels of water hardness, although the normal and ideal levels fall between 0-60 mg/L. Unfortunately, Perth suffers from unusually high degrees of water hardness, sometimes reaching over 180 mg/L.
You might be wondering what the downfalls of such a high mineral content could be. Well, take a look at your scaly faucets and showerheads, or the stiff, dingy laundry, or even your sky-high electricity bill!
The culprit? The mineral-rich waters of Perth.
But fear not, because water softeners can wash away all your worries.
Water softeners refer to a wide range of products that help soften hard water. These softeners work alongside point of entry (POE) devices and treat the water before it enters a house or building — like a filtration system.
When it comes to water softeners, you can choose between salt-based and salt-free products. Both types serve the same purpose of handling the mineral content in the water before you use it to shower or wash your dishes.
However, salt-based and salt-free water softeners go about this treatment process in slightly different ways.
So how do you know which one to choose?
Salt-based water softeners are the most common type of water treatment products. Essentially, they completely remove calcium and magnesium minerals from the water by replacing them with sodium.
The chemical process occurs within a resin tank. The resin tank of a salt-based water softener consists of several layers of porous plastic resin enveloped in sodium ions. As the untreated water flows through the tank, ion exchange occurs.
In layman’s terms, the sodium ions on the porous resin sheets attract the calcium and magnesium ions flowing freely in the water. The resin is then able to capture the minerals before they can proceed into your plumbing system.
However, a trade-off must occur. Hence, the sodium ions release themselves into the water.
But wait, isn’t sodium also a mineral?
Technically, yes. However, sodium is not detrimental to your water appliances. Furthermore, it does not resist suds such as laundry detergents and soaps in the way that magnesium and calcium do.
Unlike their salt-based counterparts, salt-free water softeners don’t actually remove magnesium and calcium from the water. Instead, they crystalize these mineral ions so that they do not adhere to surfaces.
Hence, you’re still going to have magnesium and calcium running through your plumbing system — only in a less bothersome form.
For this reason, salt-free water softeners are a less popular water treatment option. However, it is a common and often exaggerated misconception that they are less effective. In fact, there are plenty of saltless water softeners that work just as well as salt-based softeners.
At the end of the day, the choice between salt-based and salt-free water softeners boils down to your preference. More specifically, you need to consider your specific water needs, maintenance budgets, and your environment.
From a purely manufacturing and maintenance standpoint, salt-free water softeners are superior.
However, salt-based water softeners offer a much wider range of benefits. Beyond just protecting your metal appliances, they dispense water that is much gentler on your skin, hair, clothes, and dishes.
Additionally, the water supply in Perth can be too hard for salt-free softeners. While you might get away with magnesium and calcium-laced water elsewhere, the sheer amount of these minerals in Perth waters can do a lot of damage in very little time.
Both salt-based and salt-free water softeners have their own merits. One way or another, each type of water softener filters untreated water to render it less detrimental to your household.
However, if you’re living in Perth, salt-based water softeners will probably serve you best.
That being said, you can always opt for saltless water softeners if they cater to your needs better.