When to change your water filters

Changing the water filter cartridges for your tank depends on a few factors: the type of tank, the size of the tank, and the type of filter. However, a general rule of thumb is to change the filter cartridges every 6 to 12 months.

If you notice any of the following signs, it might be time to replace them sooner:

1. Reduced water flow: If the water flow seems slower than usual, it could indicate that the filter is clogged.
2. Cloudy or dirty water: This might mean that the filter is not doing its job properly.
3. Bad odour: A smelly tank might signal that the filter has reached the end of its effectiveness.
4. Visible debris build-up: If you notice particles or sludge on the filter, it’s a sign it needs a change.

When should I change my underbench filter cartridges?

If you have an underbench water filter in your kitchen, you know it plays a crucial role in providing clean, safe drinking water by filtering out contaminants like chlorine, sediment, heavy metals, and other impurities. But just like any appliance, your water filter needs regular maintenance to keep it working efficiently. One of the key maintenance tasks is changing the filter cartridge. So, how do you know when it’s time to replace it?

Let’s break it down!

1. Manufacturer's Recommendations

The first and most reliable source of information on when to change your underbench water filter cartridge is the manufacturer's instructions. Most water filter cartridges last anywhere from 6 months to 12 months, depending on the model and the quality of the water in your area. If the manufacturer provides specific guidance, it’s best to stick to it.

2. Change Based on Water Usage

Another factor that influences when to replace your cartridge is how much water your household consumes. If you have a larger family or use more water for cooking, cleaning, or other purposes, you may need to change your cartridge more frequently. Typically, cartridges are rated for a certain volume of water (e.g., 10,000 litres or 12 months of use). If you’re unsure, monitor your water consumption and replace the filter as it reaches its usage limit.

3. Taste and Odor Changes

One of the most noticeable signs that your underbench water filter cartridge needs replacing is a change in the taste or odour of the water. Over time, the filter can become clogged with contaminants, and its ability to filter out impurities diminishes. If you start noticing a strange taste or smell in your filtered water, it’s a good indication that the filter is no longer working as effectively, and a replacement is in order.

4. Water Flow Decreases

A noticeable decrease in water flow from your under-bench filter can signal that the cartridge is becoming clogged. This happens because the filter traps more contaminants over time, restricting the flow of water through the system. If you observe that the water pressure or flow rate has slowed down significantly, it’s likely time to change the cartridge.

5. Cloudy or Dirty Water

Cloudy or discoloured water is another clear sign that your filter cartridge needs replacing. When the filter has reached its limit, it may no longer be able to effectively remove contaminants, causing visible impurities to appear in the water. This can happen gradually, so it’s important to keep an eye on the clarity of your water to ensure the filter is doing its job.

6. The Filter Looks Dirty

If you have transparent or semi-transparent filter housing, you might be able to see the condition of the cartridge itself. If you notice any visible dirt, buildup, or discolouration on the filter, it’s time to replace it. Even if the water seems fine, a visibly clogged or dirty filter can compromise water quality.

7. Frequency of Filter Replacement

Even if you don’t notice any immediate signs of wear and tear, it’s a good idea to change your underbench water filter cartridge on a regular schedule. We recommend replacing the filter every 6 to 12 months, even if your water quality seems fine. This is to ensure your water stays consistently clean and safe for consumption.

8. Water Quality

If you live in an area with poor water quality or high levels of sediment, minerals, or contaminants, you may need to replace your cartridge more often. Hard water, for example, can cause calcium and mineral buildup in the filter. This can reduce the filter's effectiveness. In such cases, consider checking the filter more frequently and replacing it sooner than the manufacturer’s standard recommendations.

Final Thoughts

Your underbench water filter cartridge is essential in keeping your drinking water clean, fresh, and safe. Regularly replacing the cartridge ensures that it continues to do its job efficiently, providing you with high-quality water every time you turn on the tap. Keep an eye on the signs of wear and follow the manufacturer’s guidelines to maintain optimal water quality in your home.

Changing the water filter might seem like a small task, but it’s an important one that ensures you and your family stay hydrated and healthy. So, if it’s been a while since your last replacement, it might be time to swap out that old cartridge for a fresh one. 

Need your filters changed? We offer filter replacement services to the Hibiscus Coast and Rodney, Auckland. Contact us today for help.

We service:

• Whangaparāoa
• Orewa
• Red Beach
• Helensville
• Kaukapakapa
• Waitoki
• Dairy Flat
• Wainui
  

and other suburbs.