Frequently asked questions

Frequently asked questions

Tulip Water Filters

Flow

Flow rate is slow or inconsistent?

With a new candle, the maximum flow will be realized after about 20 liters of water has been filtered.

Ensure that you clean the filter with the supplied scrub pad to restore the flow rate of the Tulip filter. A toothbrush or a soft cloth may also be used. Especially highly turbid water needs frequent cleaning.

Water type may substantially affect the flow rate: try to find out if the water that is being used is very hard or contains much iron. For instance, does it have much silicum? Does it have much turbidity, if so, what type of turbidity? You can contact us for assistance.

It takes a long time before the filtered water starts to flow?

Using a new filter, it will take around 5 minutes before the dry ceramic element has become completely wet before the water can start to flow.

Taste

When I use the filter the filtered water in the beginning it has an earth like taste?

You should not drink the first 20 liters of filtered water when you use a new filter or a new replacement filter element. Why? Firstly, some small particles that are inside a new filter have to be washed out. It is these particles that cause an earth like taste. In the case of the Table Top filter, this means the first two buckets of filtered water need to be used in another way (instead of drinking).

The filtered water does not taste good?

The filter does not remove bad taste – it removes fine particles, harmful bacteria and parasites (in many cases, the source of a bad taste). Some substances that pass through the ceramic element that are totally dissolved, also can cause a lesser taste. Some of them are adsorbed by the activated carbon, but some unfortunately are left untouched. When the filtered water still has a certain taste, such as that of earth/the ground, try to find another water source without adverse taste.

Usage and maintenance

What is the importance of the washable pre-filter?

Contaminated water that contains sand and clay particles can cause clogging of the filter. The washable pre-filter removes a part of the sand and clay particles and prevents fast clogging of the filter element. Only if the contaminated water is very clear and contains very little turbidity can the Tulip filter be used without using the pre-filter.

I have to scrub the filter element a few times each week?

It seems that the water you are filtering is quite dirty. When you scrub the filter a few times each week the filter life will be short. After around 60 times of scrubbing, the diameter of the filter will become too small for sufficient bacteria removal. Many people apply too much force when scrubbing. You can use a soft cloth or an unused toothbrush (preferably with the brush cut short).

You can check the safe diameter of the filter element by using the plastic end-of-life-indicator.

Remove the washable pre-filter frequently and clean it in clear water.

Dirty water can be cleaned partly by filtering it through a few layers of fine woven cotton.
Another way to make the water more clear is by letting it first stand one night in the bucket. Some small particles will then have been settled to the bottom of the bucket. Obviously this would require to clean the bucket more often.

How can I store the filter in the best way?

The best way to store a filter is in a wet condition. If the filter element is wet, the water will start flowing quicker next time you will use the filter. However, whether stored wet or dried-up, always discard the first 20 liters of filtered water after reusing the candle filter again!

Other questions

Why is filtered water sometimes colored?

The filter removes very tiny particles from water but does not remove dissolved coloring agents such as yellow humic acid, ink or other coloring substances.

Can the filter be used to filter juices?

Absolutely not, the filter is only meant for filtering water.

Sales

I would like to order 1-200 filter(s), is this possible?

BWN has a standard minimum order quantity 200 units, for which wholesale prices apply. For any smaller orders we are forced to charge retail prices. Please contact us if you would like to receive a quote.
Ensure that you clean the filter with the supplied scrub pad to restore the flow rate of the Tulip filter. A toothbrush or a soft cloth may also be used. Especially highly turbid water needs frequent cleaning.

Where does BWN ship her products to?

BWN can deliver products anywhere around the world. Please contact us for more information and/or a detailed quotation.

How long does it take before I receive the products?

BWN always strives to deliver her products to you as soon as possible. Generally, this can vary between one week and two months from the order date onwards. The delivery time will depend on our stock position, the mode of transport, amount of filters and destination. Please contact us for more information and/or a detailed quotation.

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