Low Pressure

I bought a back up unit just to have about 2 weeks ago, it all works at it should. Except the pump seems to have low pressure, it has enough water to feed the pump and no leaks.

Its a 4,000 psi pump, I have a gauge on it and when I pull the trigger the psi drops and stays at 2,000 psi… correct tip and all…

I know there’s psi loss when on the trigger but dropping 2,000 is too much in my opinion…

What would the pump need? Seals or Check valves?

Thanks

I guess you already checked the unloader settings?

Yeap, I see the unloader working as it should…

When off the trigger the psi is at 4k just like it should, but once I squeeze it drops to 2,000 and I have the correct orifice nozzle in there… I think the pumps weak

You probably have a cracked plunger and it wiped the seals on that cylinder. If you’re feeling a vibration it’s probably that. You could also have a sticky check valve so check those as well. Not a bad idea to replace if they’ve got 500+ hours on them.

Face palm moment!

I totally forgot these 13HP hondas have a manual throttle and it was set too low! Pump needed some rpms. Pressure Is good!

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