KARCHER Pressure washer suction feature

I have a new Karcher K5.540 that refuses to siphon water from a standing source (the only reason I bought it). How much suction are these things supposed to have? I've tried all of the suggestions here along with common sense and this thing has absolutely 0 suction. I tried calling karcher as well and they were completely useless, I'm already in the process of exchanging it with amazon but I wanted to make sure i'm not missing something blindingly obvious?
 
[ame=http://www.youtube.com/watch?v=7BIyE4UkQJY]Little electric pressure washer - YouTube[/video]
Above video looks like a standard hose connected to tank no suction just gravity feed.
[ame=http://www.youtube.com/watch?v=03hBnjIvENM&list=UUZzVYq2EFEYFF3FKJSZYukg&feature=c4-overview]House electric pressure washer - YouTube[/video]
and GARRY DEAN HOOK UP: [ame=http://www.youtube.com/watch?v=evFTeRxtEEo]The Perfct Wash with The Perfect Soap Garry Dean Wash Method Tampa, FL Infinite Use Detail Juice High end detailing Premium Custom Detailing traditional wash 2bm two bucket method proper car wash karcher pressure washer microfiber - YouTube[/video] 03:05 MARK - then 08:20 TO 08:50 MARK. then 15:00 to 16:30 MARK
 
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215Detailing said:
Karcher 4.440-238 Water Suction Hose with Filter
I had to put KARCHER HOSE into standing water container and used the 1960's method of siphoning gas from a car,lol then once water reached top of hose I connected it to unit (pressure washer)
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Which karcher unit do you have? I've tried priming both my k5.540's multiple different ways and they don't suck water from a standing source (bucket). If I fill a hose with water and hold the hose in the air both units will pull that water in, but only if it is being gravity fed. That is not how karcher advertises it should work as seen here: Karcher X-Series 2000 PSI Pressure Washer - YouTube
 
bleomycin said:
Which karcher unit do you have? I've tried priming both my k5.540's multiple different ways and they don't suck water from a standing source (bucket). If I fill a hose with water and hold the hose in the air both units will pull that water in, but only if it is being gravity fed. That is not how karcher advertises it should work as seen here: Karcher X-Series 2000 PSI Pressure Washer - YouTube
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Last five (5) years K2 .050...... and still in box X SERIES K2.300
 
Was told not ALL KARCHER can draw from standing water source has to be X series or a K3 series or higher not sure if true
 
215Detailing said:
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Kärcher Pressure Washers
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K 2.050 Water Suction Hose with Filter Part No. 4.440-238.0
was tyrying to pull water from a bucket but after three (3) minutes of nothing I turned unit off to prevent any damage to motor
any suggestions?​
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https://www.youtube.com/watch?v=dP7hnwofanc
 
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