Frequently asked questions

We always recommend the normal filter - the white one - because of its higher magnesium content and antioxidant capacity. Magnesium is an alkaline mineral, so it will help to raise the pH of the water. 

Hard water (or limewater, as it is commonly called) is nothing more than water that is very rich in minerals. These waters contain a lot of calcium, sodium, as well as potassium and magnesium, among others.

The Alkanatur filter adds 18 milligrams of magnesium per litre, so when the hard water is filtered and magnesium is added, the taste may sometimes be slightly stronger (mineral) and may even create a whitish film. Minerals are solids that dissolved in water in large quantities sometimes give it a slight white cast.

However, there are people whose palate is used to a water taste that is very weak, especially bottled water, so they do not like water rich in minerals because of the flavour. So when it comes to this customer profile, we recommend the low magnesium emission filter -the green one-, as its emission is much lower and, although it does not eliminate the minerals that natural water has, it does not add as many.

We also recommend the low emission filter to make the transition. If you have been drinking bottled water, before making the complete change and getting used to the taste of filtered tap water, it is a good option to start with the low-magnesium filter - green - and once you like the taste and your palate has adjusted to it, switch to the conventional filter - white - because of its higher magnesium content.

The filter life is 400 litres or 6 months maximum if the amount of filtering has not reached 400 litres. Whichever comes first.

You can estimate its useful life or know that it is depleted by following any of these three options:

1. Calculate your daily water consumption. Divide the 400 litres of duration by your litres consumed per day. You will estimate the duration of the filter in days. For example: daily consumption: 4 litres. 400 litres (filters) by 4 litres of consumption = duration 100 days (3 months).

2. Chlorine measurement. You can measure the chlorine level in your filtered water with a chlorine reagent that you can buy in our online shop. The chlorine level should be kept below 0.1. 

3. Taste. Your taste buds will identify the taste of chlorine once the filter has worn out and you'll know it's time to change it.

*General average filter change rate of our customers and Alkanatur recommendation: every 3 months.

The first thing to do when replacing the filter in the jug is to activate it. To do this, follow the steps below, which are explained in the product's instruction manual. 

1. Fill the jug with water up to half full and submerge the filter with the small outlet hole facing upwards until it releases all the air it contains. 

If you do not want to hold the filter by hand, you can submerge it and place the tank on top of it, to prevent the filter from floating, for 20 minutes.

2.Place the filter in the tank, with the filter resting on a stable surface that is not inside the transparent part of the jug to prevent the jug from breaking when the filter is pressed into place.

3. Place the tank under running water in your sink and fill it completely with water (you can gently tap the filter part of the tank with your hand to speed up the activation process). Allow the water in the tank to seep out and the tank to drain. Refill it twice more and let the water drain out.*

*You can use this water for watering plants. We recommend drinking from the 4th filtration onwards to improve the taste. 

Quick video on how to activate and assemble the Alkanatur Drops Jug: see video.

If you go on holiday, take your Alkanatur Drops jug with you and enjoy purified, alkaline water anywhere. 

If you can't take your jug with you and you are going to be away for more than 3 days, leave the filter in your fridge. You can keep it in a jar or container, so that it does not absorb the odour of other foodstuffs. 

If you are going to be away for 7 days or more, remove the Alkanatur Drops filter, let it drain for an hour, wrap it in cling film or a zip-lock bag and store it in the freezer. On your return let the filter defrost for a few hours and reuse it for the remaining time of its useful life. 

We recommend, once the filter is defrosted and placed back in the jug, to filter it once and then throw the water away and start using the water after the second filtering. . 

Yes.

The filters remove microplastics and nanoplastics from bottled water. They also add properties to the water, alkalinising it and providing antioxidants.

The Alkanatur Drops Jug and Filters are designed and intended for tap water.

Alkanatur devices are suitable for use with any type of water as long as it is drinkable.

Yes, it is perfectly normal

In the first filtration or during activation, the water may come out with a greyish or blackish colour due to the filter material. Our Alkanatur filters are environmentally friendly, made of natural products: 100% natural coconut charcoal and magnesium, and we do not alter the nature of the materials. 

Coconut charcoal, due to its porous nature or even due to the transport of the material, may be more fragmented and broken and may release carbon flecks to a greater extent. It may even stain the water black. In other cases, if it is in a more compact state, it may release very little dust and the water will be completely clear.  

Yes.

Any type of water can be alkalinised and ionised.

In contrast to some existing water purification systems such as reverse osmosis, mineral or distilled water, our filters have a longer service life.

You may dispose of the filter in the yellow container.