Answers to your questions about the electronic water softener alternative.

This FAQ is designed to answer the questions that previous customers have asked us in the past. If you have any questions regarding either hard water or our products then please read through this page. If, however, your question is not answered here, then please feel free to contact us at the details given at the bottom of this page. 


How can I be certain the WaterImp electronic water softener will work for me?
Our research and experience indicates that our units work in all hard water areas of the United Kingdom and Europe. We have installations as far north as the Shetland Isles and as far south as the Channel Islands and from West Wales to East Anglia. Worldwide they are operating in Europe, Malta and the Canary Islands, the USA, Australia, India, Zambia and New Zealand. This research and experience enables us to extend to you, with confidence, our two unequivocal guarantees – 190 day no quibble money back guarantee and a five year guarantee on all our products.

How soon will I see the benefits?
Generally in about four weeks, you will notice that the water begins to feel softer. Taps, shower roses and other outlets gradually lose their coating of scale. Lather will increase and the use of detergents will be reduced. Your appliances, washing machine, dishwasher, kettle, coffee maker, will all begin to shed their scale.

Most important of all are the effects you do not see. Our WaterImp will break down the limescale build up inside your boiler, hot tank, on the immersion heater, your heating system, and in your radiators.

How do I know which one to get? And do I need more than one WaterImp?
We recommend the following as a guideline to choosing which WaterImp is right for you and check our handy guide here:

  • Up to 3 bedrooms: WaterImp Mini
  • 3+ bedrooms: WaterImp Original
  • Larger Houses with 2+ bathrooms: WaterImp Super
  • Commercial businesses, hotels, etc: WaterImp Heavy Duty

Normally one of our units (according to which type) is sufficient to cover all water entering your house. If after fitting, you find the hot water is precipitating then you can fit a second unit on the feed from the hot tank. This is rarely needed with our units, except in areas of extremely hard water.

If you’re not sure which one is right then please do get in touch – we’re very happy to help.  And if you buy one and you think you should have got a different one then get in touch and we can help.

Is the treated water fit to drink?
Yes, no chemicals are used and calcium in the water is good for you.

Does water conditioning remove existing limescale build-up?
Yes, water conditioning remedies Limescale problems quickly where the build-up is not too serious. Slowly where the build up is heavy. But it is almost impossible if the pipes are so blocked that the flow of water is totally constricted.

I’ve got chlorine, sulphur, rust, discolouration or funny bits in my water will the WaterImp help?
Our units deal specifically with limescale but as calcium is a carrier there may be an effect on other elements in your water. As water is so capricious we can’t make any specific promises about this except to say that we have had positive feedback from users who suffered with these problems and that you can always try one of our units and return it for a full refund if it doesn’t work for you within 190 days.  You may also like to try our shower filter which reduces levels of chlorine, heavy metals, and helps to reduce scale and bacterial build up. Leaving you with a clean, refreshing shower every time.

Does conditioned water help people with eczema or sensitive skin?
We cannot make medical claims but we have experience of cases where such people have benefited.

How long have you been in business?
WaterImp is a well established leader in the UK water treatment market. We have been in business since 1994 and we sell our products all over the world. 

I have a power supply with special requirements will your unit work in my country?
We have extensive experience with power supplies and your unit will always be shipped with the correct supply. If we are unsure, and have never sent a unit to your country we may write to you before shipping for further information. We have shipped to over 50 countries throughout the world including the UK, the US, Canada, Australia, France, Germany, and many others so you can be sure our unit will work in your power sockets.

I have seen more expensive units than the WaterImp. Why is yours cheaper?
We have stable production. We follow simple tenets of fulfillment and respect our purchasers. (The CEO does not have a yacht!)

Do the Water Imps conform to current safety standards
The Water Imps bear the CE mark which signifies that they conform to the following European standards:

  • EN55014 (Emmissions)
  • EN50082-1 (Immunity)


How will I know my unit is working?
You will see the green LED lights moving in a sequence. This sequence varies, from fast to slow. If the LED light does not move, switch the unit off, count to 10, then switch it on again. If they still do not move then please phone or email us for advice or a replacement.

Should the unit be left on at all times?

Do the units interfere with other kinds of equipment?
No. Our experiences show this does not happen.


Where can I get more advice?
If your questions are not answered in this FAQ then email us and we will be able to advise you.

Alternatively you can phone us on the following numbers:
If calling from the UK dial 01276 675642
If calling from anywhere else dial +44 1276 675642

Or write to us at:
Water Improvements Limited
Marcage House
38A Warren Rise
GU16 8SN
United Kingdom




1. Choose the right WaterImp for your home

Choose your WaterImp based on the size of your home

2. Fit it quickly & easily yourself


3. Say goodbye to your hard water problems and save money!


What our customers say

Running for over 20 years

“Over 20 years ago my mother bought a Water Imp for herself and for me. Over the years I had reason to ring for advice which always resulted in my Imp continuing to work. Sadly today my Imp has passed away and has to be replaced by another one, I would like to say that in this throwaway world we live in that I consider this to be pretty amazing, and of course, would recommend the product.

SA, Wendover, UK

Still going strong!

“Greetings from Austria! Can’t remember how long ago we bought our unit, but it’s still in use!”

Roy, Austria

Simply amazing

“We wanted to update you on the two water conditioners. They are doing a fantastic job. They were installed around the second week in December and we didn’t tell anyone. The family noticed the change within the first week!…. Simply amazing and simple.”


I would highly recommend

“I have had my water imp now for about three weeks and from the first day it has worked great. My hand soap now suds as well. In a few short words I would recommend highly.”

GL, Cathedral City, US