Switch currency here!
Your shopping cart is empty!

Back to All Blogs


Top Blogs

Small But Mighty

Iron and Manganese Removal


Slurry & Effluent pumping can be a nightmare!


Agricultural Blogs

Common Failures

Hints & Tips

Product Blogs

Safe Water Blogs


For all your pump related questions? Chat with us live now!

Hints & Tips

Protect Your Pump this Winter

10th December 2015 by David Critchley and Sarah Sinclair


With the recent, un-seasonably mild weather, it’s easy to forget that we need to protect our pumps from the perils of Jack Frost. When the temperature drops; and it will, here are a few tips to protect your pumping system from damage.

1)  Insulation is key. Insulating your pump gives protection against the cold to stop your pump from freezing. A simple way of insulation is to wrap the pump in bubble wrap (taking extra care to not restrict the airflow around the motor).

2)  Keep thpump switched on. Allow the pump to keep running by leaving a tap partially open. This will help to protect against freezing but you must be careful not to run your pump against a closed head as this will cause it to over-heat.

3)  Drain the system. All pumps have a drain plug at the lowest point. Be sure to remember that any pipework or control equipment will need to be drained too.

4)  Heating.  If temperatures fall significantly and your pump isn’t insulated. Have a small heater set up close by which will protect the pump against freezing.



For water wells in particular, it is important to remember that frozen pipes or control systems can damage a submersible pump if it does not switch off. There are a few different steps you can take to protect your pipes from freezing this winter:

1)  Insulate. Lag the pipes and control equipment.

2)  Install. Heating

3)  Cover. Make sure that the well is covered up securely.

4)  Drain. If you cannot protect the system, drain it down.

Don’t get caught out, act now to eliminate any unnecessary costs and problems during the winter months.

If you have any questions, please do not hesitate to call us on 01777 871100.



6 things to consider before choosing the right pump for the job

7 September 2015 by Sarah Sinclair


Choosing a pump can be difficult and since there is such a vast choice of pumps available, we know it can be quite overwhelming. By following these quick steps, you will be able to provide us with all the information we need in order to choose the perfect pump to meet your requirements.


1.    Fluid Type.

The first thing to consider would be what type of fluid you wish to pump. This could be clean water, water with solids up to 10mm/30mm/50mm or another fluid you are wanting to pump.


2.    Type of Pump.

The next thing to consider is whether your pump needs to be submersible (to operate under water) or whether it would need to be surface mounted.

Please note: If the pump was to be surface mounted, a suction lift would need to be specified.


3.    Power resource.

Another thing to consider is what power will be available in order to pump fluids. This could be either 110v, 230v/1Ph or 400v/3Ph.


4.    Flow Rate.

Next you would need to consider whether you require a specific flow rate (the volume of fluid which passes per unit time).


5.    Pressure/ Delivery Head.

Delivery head is the pressure/height at which the specified flow rate is required.


6.    Delivery Pipework.

This is the pipe in which liquids will pass away from your pump. The required size will need to be specific to where you will be pumping to.


Once all this information has been gathered, you can input this data into our pump selection questionnaire here, or if you wish to speak to one of our specialist engineers, they will be able to utilise this information to choose the best pump for the job.

Call us for free help and advice on 01777 871100.



We answer your Borehole Pump Questions!

12 August 2015 by Chloé Bleackley


Not to scare you or anything, but installing and selecting a suitable Borehole Pump System can be one of the trickiest things to get right – but once you’ve made the decisions the benefits of utilising water from a borehole can be phenomenal!

As one of the UK’s leading specialists for Borehole Systems we want to help you through that tricky decision making stage by doing most of the work for you.

If you’re in the early consideration stages of installing a borehole pump, I imagine these are some of the questions rushing around in your head… Hopefully we can answer those now.



You: I know I have access to some underground water at my property but the borehole hasn’t been drilled yet. Do Whisper Pumps do the borehole drilling or who do I contact?

Our Response: Whilst we don’t do site visits ourselves, we have a database full of registered borehole drillers who we have reliably worked with over the years. If you let us know your postcode we can put you in contact with someone close by who can visit your site and give you a consultation. The borehole driller will let you know what work would need to be undertaken to access the water.



You: How do I know if the borehole water is safe to drink?

Our Response: We can help you there! As part of our water testing service we can test your water for the 5 most common forms of bacteria and 20 most common chemicals. If your test results show that your water is not safe to drink, we can recommend treatment including filtration or UV sterilisation to purify your water.



You: How long will a borehole pump last?

Our Response: This really does depend on the working conditions of the pump. Properly installed borehole pump systems can last more than 25 years. Take a look at some pump failure prevention methods from our previous blog here. The good news is that most failures can be prevented by correct installation and use of control equipment, which we can help you choose.



You: How do I know which borehole pump to get?

Our Response: If you let us know your requirements (E.g. Power supply, flow rate etc…) via our Borehole Pump Selection Questionnaire, we’ll match up the best borehole pump for the job. We’ll include all the fittings/cables/control equipment you’ll need as part of a FREE no obligation quotation. So in answer to your question, we’ll tell you which pump to get if you want us too!



You: I need a borehole pump quick, how long will delivery take?

Our Response: We have one of the UK’s biggest stock holdings of borehole pumps in our warehouse. If you order before 2PM, in most cases we can deliver to you on an overnight delivery so your pump would be with you the next day!


I know that your 6th question will be:  how much will this cost me? At this stage we can’t answer that one as every application is unique. If you complete our Borehole Pump Selection Questionnaire, our FREE no obligation quotation will list all the prices for the equipment. You’ll get a better idea once we’ve had a closer look at your specific requirements.

If you have any questions that we haven’t answered, do not hesitate to get in touch here. No question is too silly or too technical when it comes to borehole systems. We know how tricky and confusing they can be; but the outcome will be worth it!  



Protect Your Pump From The No.1 Assassin: FROST!

03 October 2014 by Chloé Bleackley


It's officially October which means the cold nights are drawing in and it's time to wrap up as temperatures start to drop. What many don't realise is that your pump needs to stay warm too otherwise expensive failures are prone to occur!

Many of you will have come to rely on your pump working effectively for your home or business. That's why, we wanted to give you some handy hints and tips to protect your pump from frost damage. We're giving you these tips early so you can put measures in place before temperatures really do slump. 

Steps to protect your pump from frost damage are easier than you think: 

  1. Insulation Is Essential!
    This can be done by simply wrapping your pump in bubble wrap but be careful not to restrict the airflow around the motor. The likes of Grundfos and Ebara manufacture insulation shells for some of there pumps - something such as this could certainly save your pump from frost damage and save on your operating costs too!

  2. Keep Your Pump Switched On.
    This will keep the fluids circulating; keeping the liquids moving will lower the freezing point but be careful not to run your pump against a closed head as this will cause damage by over-heating. 

  3. Drain The System.
    All pumps have a drain plug at the lowest point but remember your control equipment and any pipe work will have to be drained as well. 

  4. If Temperatures Really Drop Leave A Small Heater Switched On Closeby.
    This is an extreme protection method but effective if temperatures drop well below freezing and your pump isn't insulated. Leaving a small heater switched on close by will certainly add protection. 

Using some of these protection methods could really save your pump this Winter. I would urge you to consider setting these up earlier rather than later!

If you have any questions regarding this subject do not hesitate to contact us here



How to protect your pump from common failures

14 November 2013 by David Critchley


In this latest blog we will guide you through some failure prevention methods so you can protect your pump through the winter months; the time of year when failures are more prone to occur.

Frost Damage

One of the most preventable failures is Frost Damage, this accounted for 8% of pump failures over the last year* (this is huge considering we’ve had one of the hottest summers of the century!). One of the first signs your pump has frozen is by looking at your pressure gauge; if the needle has over extended past its usual position your pump may have frozen. Steps to protect your pump from frost damage are simple:

Dry Running

Dry running accounted for a huge 18% of pump failures last year and once again is simple to prevent:

Float Switches

Ingress of a foreign object

The ingress of foreign objects can block your pump and cause failures. Once there, some foreign objects are difficult to remove and substances such as sand over a period of time can erode and wear away at your pump causing severe damage.  We advise to install a suction filter. At a starting price of £3.36 (click here) this prevention method is affordable and could save your pump in the long run.

Power Supply

Accounting for a massive 19% of pump failures in the last year power supply issues are certainly one to keep your eyes on! We supply control equipment to prevent damage from power surges, phase failure, current overload and under voltage.

We hope you have found some of these handy prevention hints and tips helpful! In the long run these methods could save your pump from failing.

Should the worst happen, we offer a super fast, Fixed price Collect-Repair-Return service for all makes of pump.

*Statistics calculated by analysing the root failures of repairs conducted at Whisper Pumps Ltd over the last year.



When purchasing a Self Priming Pump you MUST remember that it can-not operate if the casing is without water!

05 September 2013 by David Critchley


By definition, a self priming pump is a pump which will clear itself of air if it becomes air bound and resume delivery without outside intervention. To achieve this, an amount of liquid sufficient to prime the pump must be retained in the pump casing (see image 1).

Image 1

Blog Image 1

How does this work?

When the pump starts, the rotating impeller creates a partial vacuum in the suction chamber. Air from the suction pipe is then drawn into this vacuum and entrained within the liquid drawn from the priming chamber. This air liquid mixture is then pumped into the separation chamber where the air is segregated from the liquid and expelled out the discharge pipe (see image 2). This cycle continues until all of the air is expelled from the suction piping and prime has been established (see image 3).

Image 2 & 3

Blog Image 2 and 3

Consider the following points when designing a piping system for a Self Priming Pump.

Image 4                                                                                                        Image 5

Blog image 4Blog Image 5


A self priming centrifugal pump must have water in the casing in order to function correctly! You can-not just get a self priming pump out of the box, do nothing more and expect it to work effectively. If it’s only full of air, it won’t prime! “Self Priming” refers to the pumps ability to repeatedly turn an air and liquid mixture into a pumpable fluid- not the ability to create a vacuum out of thin air. You should never run a self priming pump without water in the casing as it will damage the shaft seal.



Do Not Buy A Chopper Pump For Your Farm Until You Have Read This

02 August 2013 by David Critchley


It’s a popular misconception that to pump water with suspended solids, you need to chop it all up with some kind of macerator. This is not true. Here are the facts:

Macerator pumps were designed to pump human waste through small bore pipes over long distances, and manufacturers will demonstrate them chewing up a T shirt and spitting it out as in a million pieces - impressive stuff! That’s fine when the scissor action of the blades is new and sharp, but what happens after a month or two when the razor sharp edges have become dull? If you’re in any doubt, go and grab a pair of scissors and a T shirt.

And now try straw, silage and cow hair. You can’t do it and you don’t need to.
*Leading to expensive repair bills*


Vortex pumps can easily pass solids without chopping them!

Blog Image
Vortex pumps have a rotating impeller which creates a fast moving swirl of water. The centrifugal force of this vortex escapes through the outlet on the side of the chamber, creating a depression at the inlet, drawing more material into the chamber. Because the impeller is located high in the chamber, most of the pumped media never comes into contact with the impeller and so solids and fibrous material pass straight through.

The Ebara DW VOX submersible pump is one of the most reliable vortex pumps on the market and one of our best sellers for agricultural waste water. It can pass solids up to 50mm (2”) in diameter up to heights of over 15 metres. It is made entirely from corrosion resistant stainless steel and is available in single or three phase versions.

We are so confident in this pumps ability; we would like to offer you a 30 day no risk trial on your farm.

All Rights Reserved © Whisper Pumps 2018
Whisper Pumps Ltd, Leen Court, Boughton, Newark, Nottinghamshire, NG22 9ZD