How to Descale a Pressure Washer: A Simple Guide

Water contains minerals, including calcium and magnesium, and their amounts can be measured to determine water hardness. Calcium and magnesium may be essential for human health but are not beneficial for household appliances (including boilers, washing machines, and irons) or power tools such as pressure washers. Hard water can lead to the formation of scale deposits that reduce the efficiency and durability of such machines and increase their power consumption.

In this article, we'll find out how to remove limescale from your pressure washer and prevent deposits from forming. This helps prevent annoying problems such as clogged and corroded pipes, leaks from damaged seals, especially with regard to hot water pressure washers, and build-up of scale on electrical insulation on resistor surfaces.

With a pressure washer, limescale deposits can cause problems such as low or fluctuating water pressure, clogged nozzles preventing water flow, excessive vibration, and noise. Let's see how to avoid them. Before removing the scale from the pressure washer, make sure it cannot be started accidentally by unplugging it from the socket or, if it is petrol, remove the spark plug cap for the drive.

Here are the steps to protect your pressure washer from limescale:

- If it has an inlet filter, remove it and clean it with an anti-limescale product. In the worst case, it needs to be replaced: buy pressure washer parts from your nearest dealer or contact us.

- Use a needle to clean the gun nozzle.

- If you have a cleaner canister, fill it with a descaler diluted with water, then run the pressure washer to descale the high-pressure hose, gun, and gun internals.

- To prevent limescale from forming, when you are not using your pressure washer, completely drain the internal circuit: After completing a job, disconnect the washer from the water supply and run it for a few seconds while depressing the gun trigger until the water no longer flows from the pressure washer. from the spray gun. This step is essential before winter storage.

To avoid limescale, the water should not be too hard, i.e. contain a lot of calcium and magnesium. Whether it is groundwater or tap water, the hardness depends on the source of the water. If you live in an area with hard water, the only solution to preventing limescale buildup is to install a water softener, a device that reduces water hardness by removing some of the calcium and magnesium. In addition to pressure washers, your household plumbing, and appliances will also benefit from this equipment.

Pressure washers are versatile and can be used in the garden, at home, and DIY. Not only can they be used for cleaning, but they can also be used to unclog pipes, remove paint, and more. 

The above introduces the method of removing scale from the high-pressure cleaner. If you have any questions or plan to purchase high-pressure washer accessories, please contact us.

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