How to tell when a water filter needs replacing

Posted on July 07 2022
How to tell when a water filter needs replacing

[NOTE: If you’re an existing customer of Aqua Cooler Direct then we make this process super simple! Simply check the description area of your product on our website for a handy replacement guide or you can even register your cooler with us for helpful reminders].


Unless your water filter system comes with a handy replacement date, it can be hard to tell when your water filter needs to be replaced. The amount of usage, the type of filter, and the quality of the water it’s filtering will all impact how quickly the filter is used up. However, there is a range of signs that will indicate when your cartridge filter is nearing the end of its useful life.


Different water filter systems use different methods to purify and clean your water from harmful components, and each will have a different shelf life. There is no system that will filter water forever without needing to be replaced. It’s also important to note that there’s no one-size-fits-all recommendation on when to replace your filter.


If you choose not to replace your water filter once it’s expired then you’re possibly exposing yourself to additional chemicals, toxins or other harmful contaminants.


So we’ve put together a simple guide for you to tell whether this might apply to your cooler or water filter system.


1 - Reduced Delivery Volume

Often the first sign that indicates your filter is nearing the end of its useable life is a decrease in pressure or flow rate. This comes from the pores in the filters becoming clogged with sediment or having absorbed as many toxins as possible. If you’re able to clean your filter (following the manufacturer’s instructions) then give this a try first. If it doesn’t solve the problem then it’s time to change your filter.


2 - Water Tastes or Smells Bad

The second sign that your filter has reached or passed its expiry date is that your water begins to taste or smell bad. When this happens people often complain of their water tasting salty, metallic, or smelling “off”. This is a guaranteed sign that you need to replace your filter. 


3 - Strange Noises or Air Bubbles

The third sign is more relevant to those with inline water filtration systems. In this instance, a common problem is caused by cavitation and air bubbles beginning to form in the water lines. You may start to hear hissing, bubbles, or irregular water flows coming from the outlet or tap. This can be a sign of your filter needing replacement. Try draining your system or flushing it out, otherwise move on to the last step in the troubleshooting process.


4 - Discoloured or Cloudy Water

The fourth sign that your water filter needs to be replaced is if your water becomes discoloured or cloudy. It may appear to be slightly yellow, brown or white, though it’s possible that the water won’t taste bad or smell unpleasant. However, it’s a sure sign that your water filter is no longer functioning properly and removing impurities.


5 - Expiry Date or Visual Indicators

Finally, some water filters have an expiry date added as a sticker label. If you’ve regularly used your water filter and it’s now past the expiry date, it’s time to order a replacement. Similarly, some water filters also have a visual indicator that will tell you when the cartridge has been fully used up. So if you reach this stage in the troubleshooting process then it’s definitely time to order yourself a replacement water filter cartridge!


We trust this handy guide has given you some helpful ways so you can tell when a water filter needs replacing.


At Aqua Cooler Direct, we provide peace of mind to all our customers by allowing you to register your product with us to receive helpful, timely reminders of when to change your cartridge.

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