Top Questions:

How is ZeroWater different to other brands? 

  • Most conventional water filter jugs use 2 stage water filters whereas ZeroWater use a patented FIVE stage filter
  • ZeroWater filters use Ion Exchange Technology as opposed to a simple carbon only water filter
  • ZeroWater filters remove virtually all (99.6%) of the detectable dissolved solids while leading brands remove only up to 50%

How long will the ZeroWater filter last? 

When do I change the filter? 

When the TDS meter reads "006", the filters should be changed. It is strongly recommended that the reading not go past that point. Unlike conventional filters, you may notice a difference in taste or smell when the ZeroWater filter has reached end of life. We highly recommend you change your filter at this point.

How often should I measure the TDS level in my water?

The TDS meter that comes with your system is provided so that you can measure your TDS on an ongoing basis - perhaps every other day. This is especially important if you have high TDS water (over 300), as your filter will need to be changed more often. By using the TDS meter to frequently measure your filtered water, you will know it is time for a filter change before it has gone too far past 006

Do ZeroWater products contain BPA?

No, all ZeroWater products are BPA-Free.

How fast should my water run through the filter?

Due to its 5-stage filtration system working much harder than conventional 2-stage filters, the filtration will be slightly slower than other filter brand (although it removes more contaminants). It also depends on the TDS level of your water, for example our water has a TDS of 025 and our ZeroWater jug can filter 1.7L in approx. 20 minutes.

Does a ZeroWater filter/jug/dispenser reduce the PH of water?

No, ZeroWater does not change the pH levels of the water. Continued use of the filter, after it expires, will only deteriorate the ion beads and a reduction in PH may occur. The reduction in PH is not dangerous but there is a chance under extreme filter exhaustion that the PH levels may be reduced low enough to where you will experience a taste difference in the water. We highly recommend replacing your filter upon exhaustion and not attempting to overuse your filter.

Where can I recycle used ZeroWater filters?

Most Household Waste & Recycling Centres in the UK accept used filters for recycling. Filters should be disposed of in the plastic recycling skips and will then be reprocessed and turned into other products such as garden furniture. Please also check with your local authority first.


Reasons to choose ZeroWater:

UK tap water is drinkable, so why do I need a ZeroWater filter?

Even if the service provider were able to clean water to the extent that ZeroWater does, the water can still pick up chemicals on its way from the treatment plant to the tap (or from pipework in your home). This is what gives tap water that typical taste, and is why ZeroWater tastes so different, crisp, and refreshing.

What does the ZeroWater filter remove?

Click here to view a list of contaminants that ZeroWater removes, and 6 reasons why you should filter your water 

Is it bad to remove all TDS?

Today's water filtering technologies cannot discriminate between bad chemicals and good minerals that are present in the water, so the filter removes all of these. Many nutritionists recommend that you receive essential vitamins and minerals from a well-balanced diet, and not necessarily from water alone.

ZeroWater vs. bottled water

ZeroWater filters produce the only filtered water that meets the definition for TDS in purified bottled water. So you get purified-quality water without the plastic bottles or the high cost. ZeroWater units can produce pure water at as little cost as 10p per litre.

ZeroWater vs. Reverse Osmosis (RO)

ZeroWater filters produce water that is of a similar purity level to that produced from an RO system. The difference is that ZeroWater uses a gravity-fed system, doesn't need to be installed into your plumbing, and also doesn't waste any water.

ZeroWater vs. Distilled water

Distilled water involves the process of boiling water and transferring the steam to another container, were the vapours are condensed & everything that doesn't evaporate remains in the first container. ZeroWater uses the process of de-ionisation, which involves filtering the water with ion exchange beads in the filter. People usually say that distilled water can taste flat, whereas ZeroWater is described as crisp and refreshing. Distillation also requires electricity and takes hours to treat water. 



Flow rate: my filter/jug/dispenser takes too long to filter

The water travels through 5 stages in order to bring your water down to 000. Most other water filters use only 1-2 stages which is why their water can't reach 000. The slow flow of the water lets you know that the water is properly passing through each stage.

Why can't I get a "zero" reading on my TDS meter? 

In order to get a perfect 000, there must be a complete seal when the ZeroWater water filter is screwed in to prevent any contamination. Ensure that the water filter is threaded correctly (watch for cross-threading) and fully seated in the water reservoir. Confirm that the blue rubber O-ring is present between the water filter and reservoir and has not gotten stuck in any of the threads.

Why is my TDS meter/indicator not working? 

Press the on/off button if the LCD screen shows no reading then the batteries may need to be replaced. Remove the end of the meter and replace with (2) 357A or (2) LR44.

Why does my filtered water taste acidic or fishy? 

When the filtered water tastes acidic or fishy, the ZeroWater water filter has reached the point of exhaustion and must be replaced.

My new filter arrived wet/with condensation in the bag

The carbon inside the filter is rinsed with purified water before it is packed. Sometimes, this can cause condensation inside the bag/lid, which is harmless.