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Hndyman55

Downstream nozzle has pressure?

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Hello all. First time poster. I have a pressurized cleaner with a downstream injector. I noticed it’s not sucking. I tried to free the ball with a nail but when I did the water squirted out instead of sucking in

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Yes I took it apart. And made sure it was clean inside. And yes it went ball, spring, then barbed fitting. Not adjustable.   I can blow into it and the ball pushes free. When I suck the ball seats and seals. It’s like the Venturi effect isn’t happening when put on low pressure

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How about the chem line going to the injector?
Is there an adjuster valvle/knob on the machine (some units have them)?
If you rule out everything, what remains must be the problem. I gave up on downstream injectors decades ago because of this.
Not saying you should as there are good uses for it.

Rod

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So got the new injector installed and it works great! So I looked at the old injector and somehow the screw in orfice? was missing. I didn’t realize it when I took it apart because I’ve never had one before.  Thank you for the help

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