Narrow The FAQ's

  • Is it ready to go?

    Yes. All you need to do is ensure the filter is wet through and flush once to activate it. We suggest the first time you use a new filter you fill the bottle up and turn it upside down, submerging the filter for 15 minutes. Then gently squeeze out the contents until the water runs clear.

    We have created a short video showing how to activate your filter.

  • How do I activate the filter timer on my GO! Water bottle?

    We've created a video demonstarting how to activate your Timestrip. Click here to watch.

    The timer gets pressed when you first activate your filter. It's easier to press it against a hard surface.

    The button should pop and a red strip appears in the small box on the left. This is now activated.

    The smaller box will turn red very quickly. The larger box will slowly fill up and after 2 months will be completely full. It is not affected by how much water is passed through.

    The filter is effective for 130 litres.

    Using the GO! bottle 3-4 times per day the filter will last 2 months.

  • If I don’t use my bottle everyday will it still only last for 2-3 months?

    No. The filter is good for 130 litres when using the GO! Water bottle or 200 litres for the 75cl water bottle. In practical terms this means that you can fill up the GO! Water bottle 3-4 times a day, every day and the filter will last 2 months. Using the 75cl water bottle 2-3 times a day the filter will last for 3 months. If you stop using your Water-to-Go filter it will dry out and will need to be re-activated.

    To reactivate it just fill the bottle up and turn it upside down, submerging the filter for 15 minutes. Then gently squeeze out the contents until the water runs clear.

    We have created a short video showing how to activate your filter.

  • How do I know when my filter needs replacing?

    There are three ways: -
    1) If you have a GO! Water bottle, and you have set the timer when you began using it, the timer will remind you to replace your filter after two months.
    2) If you have a 75cl bottle and have registered with Water-to-Go, an email will be sent to remind you after three months.
    3) One of the three technologies in our filter (the one which controls the taste and the smell) is carbon. We programme just enough carbon into the filters to expire at either 130 litres or 200 litres. The filter will still be filtering bacteria, cysts and harmful contaminants; the water after this time will gradually start to taste and smell as it did before using the Water-to-Go bottle. This is a ‘sensory’ prompt for you to change the filter.

  • Do you filter Fluoride?

    Yes. See our testing results.

    Our filters use both alumina nano technology and carbon to filter out fluoride.



  • Do you filter Chlorine?

    Yes. Recent tests show that Water-to-Go filters reduce the amount of chlorine in the water to below detectable levels. You can see our testing results,also you can taste the difference when you drink from a Water-to-Go filtered water bottle. 

  • How does the bottle ‘save the planet’

    By choosing a Water-to-Go bottle you reduce plastic pollution and save resources. Pollution caused by millions of plastic water bottles floating in our oceans damages wildlife and the planetary ecosysytem. Making just one Water-to-Go water bottle instead of a hundred single use single-use plastic water bottles preserves valuable natural resources.  Huge quantities of oil, water and other materials are used in the manufacturing and shipping process of single-use bottles. At the end of their lives, only 12% of plastic bottles are recycled!

  • How much per litre would water cost via your bottles?

    For users of the 75cl water bottle, 4 replacement filters a year, would provide 800 litres of water which would cost around 4.5p per litre for the filters used.

    For users of the GO! Water bottle, 6 replacement filters per year processes 780 litres of water which would cost just over 6 pence per litre.

  • Do you have testing reports?

    Yes. You can view these on our website, We have been tested on three continents by internationally renowned laboratories in London, Florida and Bangalore.

    We have further test results coming in from additional laboratories in Europe.

  • How does it work?

    Water-to-Go uses three different technologies forged together in one filter to filter over 99.9% of all contaminants in water. The medium used in the filter was designed for the NASA space programme and consists of:

    A) Filter medium with one of the smallest pores sizes ever developed for water filtration
    B) The traditional technology of activated carbon particles (that reduce bad taste and odours) used within the filter medium so that it is much more effective as there is less adhesive holding the carbon in place thereby providing a greater surface area for the carbon to work
    C) The medium releases a positive hydrostatic charge when it comes into contact with the water

    No other water filter technology combines these three technologies and delivers results at low cost.

  • What are the three technologies Water-to-Go uses?

    1) Water-to-Go uses mechanical filtration; a very small pore size which stops contaminants passing through.
    2) Electrical (by a positive charge) which reduces the pore size even further and attracts the contaminants like a magnet would, trapping them inside the filter.
    3) Finally our filters use carbon but instead of using adhesives to glue the carbon particles together, (which vastly reduces the carbon’s efficiency) it is contained within the membrane, helping to reduce contaminants whilst eliminating bad tastes and odours.

    Try filtering water from your domestic filter and taste the difference!

  • Can you brand the bottles for charities and companies?

    Yes; we can make bespoke bottles using your logos. We have done this for several large organizations and charities able to guarantee a large initial order to cover the design costs of putting your logo on a Water-to-Go bottle. For more information please contact

  • Can I be a stockist?

    Water-to-Go is currently looking for additional stockists in the UK, and Europe. For more information please contact, and one of our team will help you with details of minimum order quantities.

  • Can I be a distributor?

    Water-to-Go is looking for additional distributors in some territories around the World. These are typically established businesses able to commit to a long term business plan.  For more information, please e-mail

  • Do you make jugs?

    Water-to-Go specialise in portable filtration solutions so at this stage we do not offer a jug.

  • How much does the bottle weigh?

    The GO! bottle weighs 98g (empty with dry filter).

    The 75cl bottle weighs 138g (empty with dry filter).

  • What is BPA?

    BPA ( or bisphenol A) is a carbon based compound that is widely used to make plastic based products including CDs and water bottles. There has been a lot of research done to indicate that BPA poses a serious risk to humans and the environment.  Find out more about BPA at

  • Are Water-to-Go products BPA free?

    Yes; all the product components (bottles, lids and filters) are BPA free and all materials used are approved by the FDA (Food and Drug Administration) in the USA. Our core guiding principles (see Our Mission. ) are to protect people and the planet.

  • Can I use other liquids in the bottle other than water?

    This may reduce the efficiency and lifespan of the filter; however if you want to use your Water-to-Go bottle to carry other liquids, you could simply unscrew the filter, take it out, and use the bottle as a standard sports drink bottle.

  • Where is the product manufactured?

    The filter membranes are manufactured in the USA and all other parts are assembled in Water-to-Go units in Thailand.

  • My bottle keeps making a ‘tweeting’ noise… How do I stop this?

    This noise is caused by the ‘breather valve’. Simply unscrew the lid, turn upside down, gently move the bottom part of the breather (a mushroom shaped dome) up and down, two or three times; this will cure the problem.

  • Will the filter clean urine?

    This is a frequently asked question – and whilst the filter could be used to filter urine in extreme emergencies, Water-to-Go strongly recommends against filtering and consuming urine. 

  • What makes Water-to-Go different from everything else?

    The 3 in 1 technology used in our filters is so unique we have created a seperate page telling you all about what makes Water-to-Go different from everything else on the market.

  • Why does my new filter have a case on and my old one didn't - Is it the same filter?

    We have improved our filters by using protective casing around the filter membrane. It is the same 3 in 1 technology filter underneath. The casing simply provides extra protection for the filter. All replacement filters in the future will come with the protective casing. The casing is 100% recyclable. When it's time to change your filter you can break the plastic away from the membrane (by stepping on it or cutting it) and recycle it.

  • What is the pore size of the filter (in microns)?

    When we talk about pore size we refer back to standard technology. The mechanical restriction of the size of the pores has been the traditional 
measure of what a filter will eliminate. This is not the case with Water-to-Go. We have a unique combination of three technologies, each performs individually but it is the combination that makes us unique. We have a combination of two nano technologies, which not only reduce the pore size to 0.7 microns, but also create a positive hydrostatic charge in the membrane which attract and traps even the smallest of viruses like polio (which can be as small as 0.03 microns). Have a look at our testing page to see our tests for the Polio Virus - Testimony to the fact that we achieve substantial results by the combination of technologies rather than depend on just the mechanical calculation via a limited pore size.

  • Can I put my bottle in the dishwasher?

    The 75cl Bottles are dishwasher safe (bottle only – lid is hand wash only). The 50cl GO! Bottles & lid are hand wash only. In all cases, please ensure you remove filter before cleaning.

  • Can I put my bottle in the Fridge?

    Yes, Water-to-Go bottles can be left in the fridge.

  • Can I put my bottle in the Freezer?

    No, the filters are not suitable for the freezer. Freezing the filter damages the membrane and impairs its performance. If your filter has been frozen, we would recommend replacing ASAP.

DOES THIS ANSWER YOUR QUERY? If not ask us and we will get back to you

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