Question about Karcher 2500 PSI Pressure Washer

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Borrowing this washer will not **** up the cleaner

Wondering how to get it to syphon the cleaner. Is there a putton or nob?? Can't see one. or what is the secret?

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On some models make sure u twist the filter to the max

Posted on Aug 07, 2009

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It should have come with several different nozzles. The siphon will only work with the low pressure one. It is usually black, and will have a larger opening compared with the others. Use this one to apply whatever you are siphoning, then switch back to one of the others to rinse.

Hope this helps.


Posted on Aug 01, 2009


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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1 Answer

Diagram of a craftsman power washer

The only filter on the detergent pickup is usually at the end of the hose you drop into the detergent. To clean the line and syphon attachment only requires a little pressurized air to blow out any debris that may be in the line. Make sure you are using the black, soap tip on the pressure gun when trying to use the detergent syphon system. If you are using any of the high pressure tips there will be too much back pressure in the line for the syphon to work.

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The water is syphoning out the drain hose.
Many times when the stand pipe is backing up someone will seal the washer drain hose to the pipe to avoid overflow of the stand pipe.
This causes the water to syphon from the washer.

Or the opening for the stand pipe is just big enough to put the drain hose in and is to tight causing the syphon.

Putting the drain hose to far down the pipe can cause a syphon also.

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Try turning water faucets off. Does it still flood when done? Does your drain hose empty into stand pipe that is at least 30 inches from floor? Make sure drain hose does not go anymore than a few inches into pipe. If it is pushed too far in, unit can syphon water back into unit.

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