I know it may be mickey moused but I don’t have the work yet to upgrade to a an 8 GPM unit but as soon as i do I’ll get a more professional setup.
I know…it is amazing what people will come up with to keep from spending a small amount of money.
@JohnH google the term “engineering principals” and report back with your findings. It will all make sense trust me.
@MuscleMyHustle Thank you trying to point me in the right direction but whatever i was reading was going right over my head. I know I have a lot to learn and i’ll be making more mistakes along the way. I do appreciate everyones help and criticism.
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Maybe this is stupid, but with these unloaders. Why can’t they be messed with to regularly adjust the output psi? Ive been looking on here and most say not to touch it. Why would you want a 2nd unloader, what would be the benefit? Then having it with a bypass, what purpose would that serve? Again, sorry for the questions, these are things about unloaders that have risen by reading up on here. Thanks in advance.
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From a mathematical viewpoint unloaders pose rich challenges.The governing equations for water waves are a widely accepted model and they have been the subject of a wide range of research. However, the equations are highly nonlinear and the level of difficulty is so great that theory has yet to scratch the surface of the subject. The solutions to the equations that describe fluid motion are elusive and whether they even exist in the most general case is one of the most difficult unanswered questions in mathematics.
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Dying! 
@cturner120, my understanding is that it’s not good for the unloaders to bypass more than about 5% of their flow. When you turn them down to reduce pressure, it has to bypass more water. You also end up with less water to work with, and we all know GPM is king. Why hamstring yourself like that?
If you use the correct tips to reduce your pressure, instead, the unloader will continue bypassing the amount of water it’s designed to (somewhere between a trickle and 5%, depending on the manufacturer’s instructions)
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The purpose of the unloader is to divert the pressure that the pump is building when you let off the trigger. Kind of like a relief valve.
The reason it is adjustable is because they are not pump specific, so it needs to be adjusted to bypass at the correct pressure for the pump it is installed on.
When you play with the adjustment knob trying to scrub off pressure, you’re forcing the unloader into a partially open, partially closed position, and that’s hard on the equipment. It’s designed to be run only in the open or closed position +/- a small variation.
There is no benefit. The people who are doing it have a pump with a built in unloader. A built in unloader releases pressure by diverting water back through the pump. This causes the pump to overheat after a few minutes of the water continuously recycling through the pump, when you are off the trigger.
By modifying the setup and disabling the built in unloader and adding an external unloader, you can divert the water away from the pump into a buffer tank or onto the ground I guess. This allows you to be off the trigger for an infinite amount of time without overheating the pump.
It’s kind of a janky way of going about things and either way those small pumps with built in unloaders won’t last long enough to justify all the work to make them work properly.
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I can’t believe I missed this thread.
All I can say is LOL.
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