Having problems with your Karcher Pressure Washers ?

I am trying to clean my block paving using my pressure washer Karcher 3.99, which I used successfully last summer, however, it is not cleaning well. I have used the high power nozzle but the power seems inefficient to get the dirt out of the paving. Please can you advvise what you think the problem may be. Many thanks. Sue Thompson


Answers :

Hello Sue, you don't say where in the world you live, but if you are attempting to clean dirt and algae off pavers, you need to add a solution to the water jet via the inbuilt attachment. Mix a fairly mild solution of bleach and detergent, pus a dash or deodoriser to the cantainer. Put your karcher on low pressure and give all the blocks a good wetting. Do this in the morning so the solution doesn't dry. After 20 ~30 mins, Claen off with the Karcher on normal high pressure (not the tubo lance). HINT: Leave the trigger on all the time and don't stop and start using it. This will prevent hayraulic hammer which can split the pump head.
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