Question about Karcher PSI Electric Pressure Washer
The pistol gun started leaking and there was no pressure. I took the pistol srayer apart and found that the tube inside had cracked. I put a second pistol gun on and within hours the gun had also broken. Is there a pressure relief valve that can be adjusted? Karcher 650M
Make sure you DO NOT have a check valve (this is what stops your hose running when you disconnect from the hozelock fitting) in your hose pipe system, This will send a shockwave through the pressure washer and destroy the fitting you mentioned. They can be easily removed.
Posted on Jul 25, 2009
I do not think there is a pressure release valve , sounds like the plastic inside the pistol has become brittle and has failed under pressure , you dont say how old the pistols are ? and if you run strong detergents through them .
Posted on May 26, 2009
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Posted on Jan 02, 2017
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