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Latest Blog News - Page 4

Is Iron Contaminating Your Water?

19 December 2013 by Chloé Bleackley


Many boreholes all over the world are affected by Iron deposits in one form or another. This could be from either conversion of dissolved iron salts from the water or by the action of certain naturally occurring bacteria which thrive in an iron-rich environment.

At Whisper Pumps we have discovered an inexpensive remedy to treat iron or manganese fouling and we’ve named this remedy the ‘Fe-Gon’. Fe-Gon is supplied as a crystalline powder containing a powerful, naturally occurring chemical which combines with the iron deposits to form a solution which can be pumped from a borehole.

Left untreated, Iron will gradually block pump impellers and waterways- so it’s best to resolve the issue before it gets to that crucial stage!

To view more about Fe-Gon including prices please click 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.



Common Causes of Pump Failures

21 October 2013 by David Critchley


A question we are often asked is: How long will a pump last? This is of course difficult to answer because there are so many factors to consider: Running time, operating conditions, different fluids etc.

However, it is very rare for a pump to fail because it is just ‘worn out’, usually an external factor is the cause of failure - most of which can be prevented. To explain this we have compiled a chart to show the root causes of pump failures we have repaired over the last year.

Common Causes for Pump Failures 2012/13

It must be stressed that these are the root causes of failure, for example a foreign object entering the pump may damage the shaft seal, which may allow water to damage the bearings and eventually short circuit the motor.

The good news is apart from bearing failure, almost all of the above factors can be prevented by correct installation and use of suitable control equipment. In our November 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 these failures are more prone to occur!



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.


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Whisper Pumps Ltd, Leen Court, Boughton, Newark, Nottinghamshire, NG22 9ZD