I have a fairly new Karcher 2300 PSI gasoline powered pressure washer
I purchased from COSTCO. Almost immediately out of the box I noticed i
would have to hold the trigger on the wand in for 30 seconds or more
before pressurized water started coming out. Now I need to hold it for
2 - 3 minutes and if I am lucky I'll get pressurized water! Any
Make sure all the air is gone from the hose before you connect
it. I run water through my cheap electric one with the nozzle
off, just using faucet pressure, until water comes through in a
steady stream, then I turn it on. I've been told to never power
it up until it is full of water.
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