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How do I fix the chemical inlet on my washer?
James writes "After installing a new chemical pick up valve on my 3000 PSI gas washer, it will not work. (How do I fix this problem?)"
Harold: The physics principle that causes the chemical mixing to work properly is not very complicated. You must drop the pressure in front of the outlet piece, where the hose attaches, to a pressure less than the pressure on the pump side. This causes a negative pressure at the chemical inlet.
So basically you must drop the pressure on your washer hose with a device such as any oversized nozzle or an adjustable nozzle holder. The pressure on the gauge should drop to between 1000 PSI to 1500 PSI at the time the chemicals are added to the water.
Reasons the above action might fail:
- not dropping the pressure far enough with the controlling device.
- too much line in front of the chemical inlet causing too much back pressure.
- a damaged high pressure hose or fittings added to the hose.
- a badly worn gun not opening far enough.
- outlet fitting that needs replacing.
- a plugged chemical filter or hose.
Try connecting a short hose on the unit without a gun on it. If it functions you know the problem is something to do with the hoses or gun. If it doesn´t function the problem is something to do with the chemical inlet or the output piece.
Other questions:
My older pressure washer has gotten weaker, how do I reverse the process?
Why is my pressure washer leaking oil?
I ran my unit without venting the crank case. Did this damage the pump?
Will storing my pressure washer upside down ruin the unit?
Why is my motor not loading up when I engage the wand?
Is my pressure washer idling properly?
My pressure washer is too loud, what can I do to fix it?
I'm not getting very much pressure!
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