Where can I get an orifice (nozzle for idrojet, blue, #4.0 - part# 22593 for a NorthStar pressure washer 157557?

Could be low water pressure I have found.
Also, I purchased a can of "stuff" at Lowes today which allows you to circulate a liquid substance which lubricates the pressure pump....the pump could be frozen up...
I have a rotating nozzle which I bought...and it had frozen up...this stuff works

Sounds like it could be your unloader. make sure you always have the water on while your motor is running.

Hi and welcome to FixYa, I am Kelly.
From your description of the problem:
"motor runs good sounds like it should be full pressure" This sounds like the wand nozzle is clogged behind the nozzle. Remove the nozzle and check for debris behind the nozzle face. All it takes is for a tiny piece of particulate to block the nozzle orifice. (Dig out what ever you find behind the orifice. After you check and re-test the nozzle if you still have the problem there is a lot more that can be done to troubleshoot. I just think you have a clogged nozzle at this time. If the nozzle was not clogged... respond here and I will pass on more information. I think we can easily correct this problem.

Thanks for choosing FixYa,
Kelly

I used a vise and pipe wrench to loosen. Have to be careful with the vise that you don't over tighten it and damage the hose fitting. When replacing the nozzle, lube the threads with non-water soluble grease.

Hi there PBM,

The siphon will only work at low pressure.
The wand should have several different nozzles. There is a specific low pressure nozzle.

If they are color coded, it is usually black, If nothing else, look for the one with the biggest opening. and attach it.

The siphon will work with it



Best regards
Mike

Most commonly, debris gets plugged internally in the nozzle holes. Using a small pick from the outside, with the nozzle removed from the wand (it is threaded on), you can try to dislodge debris caught in the nozzle holes.

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

NorthStar Pressure Washer Turbo Nozzle --> --> Turbo nozzle sprays up to 3.1 GPM at 2300 PSI and 194°F. Unique design delivers 0° high pressure impact with wide angle spray coverage.
The point of the Turbo is that it is a solid ( high pressure stream of water )

The wand is dirty!! Clean out the Nozzle with a small diameter wire.

bypass valve is shot or stuck in the "open" position

1999 campbell hausfield 1800 psi--2.2gpm. weak pressure at the nozzle. water sprays out, but with the pressure of a garden hose.