We have discussed the benefits of a power flush and how long one may take, but just in case you are still on the fence about getting one we thought we could give you a brief idea of what to expect/ how the job is done.
Please note that whilst we can detail the steps, we will take to carry out a flush, this is not an instruction guide and we do not recommend trying to carry this out yourself.
A layman’s guide to Power flushing.
We will identify if the systm is vented- if it is we will cap off the cold feed and expansion pipe.
We will then connect our pump to the heating system, this will be done at two points.
Once the pump is connected, we then open all radiator and lock shield valves and put zone valves in the manual position, this allows full flow throughout the system.
We are now ready to run the pump, we ensure we reverse the flows regularly.
Once the pump has been running for a while, we can then begin the process known as dumping. Dumping continues until the water coming through the pump runs clear.
Once the water is clear it's time to add chemicals into the system and set the pump to circulation mode.
Once the chemicals have been pumped through the open system, we will shut off all radiator valves bar one, and flush the radiator separately from the system. This is repeated for each rad in the system. (This is why the number of radiators has such importance when providing quotes for flushes)
Once all radiators are flushed and the water in the pump is clear Inhibitor is added to the system to ensure the effects of the flush are long-lasting and your system is protected.
There you have it, a very basic guide for something that could add years to the lifespan of your central heating system.
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