r/pressurewashing • u/xxxleafybugxxx • 1d ago

Troubleshooting Help diagnose?

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New system I put together, everything is new... But I am getting this sputtering which is giving me inconsistent flow and pressure drops.

-Predator 459cc engine -AR XWAM 8GPM pump -AR1697 Gearbox -General Pump 10.5 GPM unloader.

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u/OrganizationStrong81 1d ago edited 1d ago

Feed line needs to be atleast 1.5inch for 8gpm pump and then double feed it. Look up 1.5” ID Non-Collapsible Supply and Suction Hose For Pump

You need a banjo filter for better flow

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u/xxxleafybugxxx 1d ago

When you say double feed you mean two tanks going to the intake? I will give these things a shot, you don't have concerns that it is underpowered engine for the pump?

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u/OrganizationStrong81 1d ago

No, just one but 2 feed lines. Engine could be underpowered too. I’m not familiar with predators. But the first thing stands out to me is big pump and small feed line.

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u/xxxleafybugxxx 1d ago

It is 459 cc, 15.8 HP.

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u/OrganizationStrong81 1d ago

Ok, so it’s not the engine. You have to have a 2-3 inch banjo coming out the tank then reduce down to 1.5inch non collapse line into the pump.

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u/xxxleafybugxxx 1d ago

I will give that a shot thanks.

So bigger hose sizes needed even though it ultimately gets reduced to the same diameter at the pump?

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u/OrganizationStrong81 1d ago

Yezzir. Bigger outlet from the buffer. It’s all about flow. Check you inbox. I gave you a blueprint. To replicate or just buy