Wessex Powerflush Pack
     
 
Frequently Asked Questions
As the Wessex Powerflush Pack involves a completely new process for cleaning central heating systems, there have been many questions concerning the usage of the products and the technical aspects on how the process actually works. Here you will find some of the questions that have been raised along with the answers. If you have any questions not covered on this website, please feel free to contact us and we will be happy to answer any queries.
How long should the Sludge & Flux Remover / Siltfree mix be left circulating in the system?
A typical 10 rad system takes between 30 minutes and 2 hours depending on the severity of the sludging. For a very dirty system, i.e. where nothing seems to be moving through the radiators, it could be worth leaving the products in for a day or two to ensure everything is cleared, the mix can be left in for up to two weeks without any detrimental effect to the system. The Siltfree can be left in permanently if it is felt that sludge and silt build up may be a continuing problem.

Why do you recommend that all radiators are cleaned in one loop, rather than one radiator at a time?

Because it's easier, quicker and more effective! Let us explain:  Waterflow, not pressure, is the basis for cleaning domestic heating systems. The pump in a Powerflush machine is more than capable of pushing water around most domestic heating systems. Combining that capability with the chemical properties of our Sludge & Flux Remover and Siltfree means that you can effectively clean a domestic heating system in one loop, rather than trying to clean one radiator at a time using physical force.  
For very large systems, some engineers use the circulation pump combined with the Powerflush machine to generate the required waterflow.

Are the chemicals harmful or dangerous?
There are no acids in either the Sludge & Flux Remover or Siltfree products, they are both environmentally safe and can be dumped to drain in the normal way.
The Powerflush Descaler contains food grade acids that can be discharged to drain.  COSHH safety data sheets are available on request.
Why does your system use individual products rather than one solution for the whole system?
Central heating systems have two main parts, one being the boiler / heat exchanger and the other is the radiator system. Both these parts have seperate needs, the heat exchanger suffers mostly from scale build-up therefore needs a descaler. The rest of the system rarely contains scale, only sludge and therefore only needs the sludge removing. This means there is no reason to put an acid through the radiators.
Do I need an acid neutraliser for the Powerflush Descaler?
The dumping facility on powerflushing machines is easily capable of doing a water change to the system so that the pH can be brought back to 7 (pH papers supplied). This indicates that all the acid has been removed.
If time and system size is an issue then an acid neutraliser is available.
Do I have to use your Corrosion Inhibitor in a system cleaned with your Powerflush Pack?
No. Any make of corrosion inhibitor can be used in a system that has been cleaned with our Powerflush Pack, although ours is recommended as it contains a blend of three inhibitors, compared to the usual two found in most others.
What if I run out of one of the three products in the pack and still have some of the others left?
Sludge & Flux Remover, Siltfree and Powerflush Descaler can be individualy purchased in 1 or 5 litre containers, either direct from Wessex or from your nearest authorised distributor -see ordering for more details.
Wessex Chemical Factors
WESSEX CHEMICAL FACTORS incorporating Speciality Products and Retail Pack
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