Question about Devilbliss DeVILBISS Devap DVH2600 Gas-Powered Pressure Washer
A couple of things, what makes the engine change tone and revs is pressure, depending on the age, it may have excessive calcium build up in the pump, there may have also been a build up of crud or a wasps nest in the end of the hose when you connected and is now in the actual pump, you can remove the base and flush the sytem, hope this helps the problem, good luck.
Posted on Jun 01, 2010
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Posted on Jan 02, 2017
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