Title: Karcher pressure problems
Product review: Karcher pressure washers have a common with sticking pump valves, especially the unloader valve. The brass parts that the valves are made from corode real fast. Most people start having problems after the first year of use because of the scale that is caused by city water. Karcher does not provide a manual for its pumps and does not have a tech help phone line. They force you to take the washer to an expensive repair station.[...]If Karcher made these valves of better grade materials and lubricated them with waterproof lubricants, this would not be an issue.
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