2018.07.13 13:09 | Sean Carter
If you run the maintenance department of a company or school it’s likely that there is at least one boiler on the premises. Depending on the size of the building there could be more than one boiler present. As someone who is in charge of maintaining the premises, it’s important to know what descaling is when dealing with boilers and the boiler feed pump.
When it comes to descaling, there are two methods that are used to ensure that boilers are cleaned thoroughly. The first of these methods is used to clean corrosion deposits that are found in the radiator system of the boiler. The deposits can also be found in the boiler’s main heat exchanger. The second method used to descale a boiler is when the hard water deposits are removed from the combi boiler.
If you need to clean the corrosion deposits from the radiator system of the boiler you will want to perform power flushing. This process involves the connection of a heating system to a pump that also has a reservoir. The reservoir is filled with either clean water or chemicals that will be used in the power flushing process. The item used is then sent through the heating system radiators at high rates of speed by the pump.
As the dirty fluid begins to pool it is pumped out of the heating system for drainage. The dirty fluid is replaced by clean water or a chemical that can neutralize any other issues. This mixture is then removed from the system and replaced with clean water and an inhibitor that targets corrosion. The power flushing process takes one hour per radiator to complete.
Descaling is used when there is too much calcium on the heat exchanger that the performance of the boiler feed pump is not working effectively. Descaling involves pumping acid through the system for no less than one hour at a time to remove the calcium. Your other option is to replace the heat exchanger.